What is 2x+1+7x=-8? Could you show work, please?

Answers

Answer 1

Answer:

Step-by-step explanation:

2x + 1 + 7x= -8

~2x + 7x = 9x

9x + 1 = -8

move 1 to the other side

9x = -1 -8

9x = -9

divide

X = -1

Answer 2

Answer:

Step-by-step explanation:

Simplifying

2x + -1 = 7x + -8

Reorder the terms:

-1 + 2x = 7x + -8

Reorder the terms:

-1 + 2x = -8 + 7x

Solving

-1 + 2x = -8 + 7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.

-1 + 2x + -7x = -8 + 7x + -7x

Combine like terms: 2x + -7x = -5x

-1 + -5x = -8 + 7x + -7x

Combine like terms: 7x + -7x = 0

-1 + -5x = -8 + 0

-1 + -5x = -8

Add '1' to each side of the equation.

-1 + 1 + -5x = -8 + 1

Combine like terms: -1 + 1 = 0

0 + -5x = -8 + 1

-5x = -8 + 1

Combine like terms: -8 + 1 = -7

-5x = -7

Divide each side by '-5'.

x = 1.4

Simplifying

x = 1.4


Related Questions

what does 108% of $50 equal

Answers

Answer: $54

Step-by-step explanation:

50/100 times 108

= 1/2 times 108

= 108/2

= 54

therefore, 108% of $50 is $54

Answer: 54

Step-by-step explanation:  108% of $50

=50/100 X 108

=1/2 X 108

=54$

Endpoint: (1.-10), midpoint: (6, -6)

Answers

Answer:

Step-by-step explanation:

(x + 1)/2 = 6

x + 1 = 12

x = 11

(y -10)/2 = -6

y - 10 = -12

y = -2

(11, -2)

what is the equation of the line passing through the points (3,6) and (2,10)

Answers

Answer: y= - 4x+18

Step-by-step explanation:

Equation: y=mx+b

***remember: b is the y-intercept and m is the slope.

m=[tex]\frac{y2-y1}{x2-x1}[/tex]

3= x1

2= x2

6= y1

10=y2

m=[tex]\frac{10-6}{2-3}[/tex]= [tex]\frac{4}{1}[/tex]= -4

m=-4

Now we have y=-4x+b , so let's find b.

You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:

   (3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.

   (2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.

Equation of the line: y=-4x+18

simplify the expression:
-5 (z - 1) =

Answers

This problem simplified could be -5z-1

Answer:

maybe  -5z-1?

Step-by-step explanation:

choose the model that verifies the quotient 1/5 ÷ 5​

Answers

Answer:The answer is B.  Think about it this way, You have five rows, ANd ur trying to divide all five rows into 1/5. So you have to  spilt five rows into five sections.. And color in one row because its one out of 5.. ( hope i helped im bad at explaining but hopefully you get what im trying to say) Can i get brainliest pls?

Ava turtle is half as old as her parrot in 10 years her turtle will be 3/4 as old as her parrot .write the equation to represent this situation.How old is avas turtle

Answers

Answer:

13

Step-by-step explanation:

I think the turtle would be 13 and 1/3 because we know that the turtle is half as old as the parrot. So if we divide 10 by 3/4 we can get how old the turtle is now

The system of the equation is :

[tex]2x=y\\3y-4x=10[/tex]

Thus, the age of the ava's turtle is 5 years.

Given:

Ava's turtle is half as old as her parrot.

The turtle will be 3/4 as old as her parrot in 10 years.

Let us assume the age of the turtle is x years and the age of the parrot is y years.

According to the first statement, the variables can be related as:

[tex]{x}=\dfrac{y}{2}\\2x=y[/tex]

According to the second statement, the variables can be related as:

[tex]\begin{aligned}x+10&=\dfrac{3}{4}(y+10)\\4(x+10)&=3(y+10)\\4x+40&=3y+30\\4x-3y&=-10\\3y-4x&=10\end{aligned}[/tex]

Thus, the system of the equation is :

[tex]2x=y\\3y-4x=10[/tex]

By solving the above system of the equation, we get x=5 and y=10.

Thus, the age of the ava's turtle is 5 years.

To know more about the system of the equation, please refer to the link:

https://brainly.com/question/2146068

Kayla worked 3x+6 hours this week. She earns x-2 dollars per hour.

Use the drop down below to create a polynomial that represents the amount Kayla earned this week.

the first drop answer choices are

A)2x
B)2x²
C)3x
D)3x²
E)4x
F)4x²

the second drop menu answer choice

A)+
B)-

the third drop menu answer choice

A)4
B)8
9)12

Answers

Answer:

3x²-12

Step-by-step explanation:

We are going to multiply both equations because we want to found how much she made that week.

(3x + 6)(x - 2)

~Use FOIL

(3x * x) + (3x * -2) + (6 * x) + (6 * -2)

~Simplify

3x² - 6x + 6x - 12

~Combine like terms

3x² - 12

Best of Luck!

3x²

-

12

Step-by-step explanation:

We are going to multiply both equations because we want to found how much she made that week.

(3x + 6)(x - 2)

~Use FOIL

(3x * x) + (3x * -2) + (6 * x) + (6 * -2)

~Simplify

3x² - 6x + 6x - 12

~Combine like terms

3x² - 12

Best of Luck!

Simplify 2x^7 times x^-4

Answers

Answer:

The answer is B

2x to the power of 3

Step-by-step explanation:

2x to the power of 7 minus 4 equals

2x to the power of 3

Find the value of x. Then find the missing angle measures of the polygon.
5x degree
110 degree
2x degree
Sum of angle measures: 180 degree

Answers

Answer:

10

Step-by-step explanation:

Write an equation in​ slope-intercept form of the line that passes through the given point and is parallel to the graph of the given equation. (-7,-6); y=-5x+2

Answers

Answer:

The equation in the slope-intercept form is

y = -5x - 41

Step-by-step explanation:

The given equation in the question is;

y = -5x + 2

The equation of a straight line graph can be written in the form;

y = mx + c

where m is the slope and c is the intercept

From here, we can see that the slope m is -5

Since the line is parallel to the new line we are trying to write its equation, it means that they have the same value of intercept.

Hence, the slope of the new line is also -5

Now, we can write the equation of the new line as;

y = -5x + c

we need to get the value of c here however

To get the value of c, we need to input the value of x and y

From the graph, x = -7 and y = -6

Substituting these values, we have;

-6 = -5(-7) + c

-6 = 35 + c

c = -6 -35

c = -41

So the equation of the new line will be;

y = -5x - 41


If you are given a graph, an equation, and a table; each representing a different linear function how would you determine which one has the greatest rate of change

Answers

Answer:

you would simply calculate the slope for each, a graph it is easy because you simply get two points on the graph and solve for it (y2-y1/x2-x1), an equation if it is in slope intercept form, the coefficient of x is the slope, from a table you use a similar method to a graph except you grab two values/instances, let's say in a table the numbers are presented like this:

3   4

2   6

You would then simply do the same thing for solving for the slope (y2-y1/x2-x1). In this instance it would be 6-2/4-3=4/1

All of these would give you the rate of change as the slope is the rate of change.

Step-by-step explanation:

This grid shows the location of four animals.

Where is Chewy located?

Answers

Answer:

We can't see the graph

Step-by-step explanation:

Uhh look at the # points like 123 ya know

Answer:

can't see graph

Step-by-step explanation:

In Akutan, Alaska, men are 77% of the population. It is also known 11.3% of

Akutan males smoke cigars while 2.1% of Akutan females smoke cigars. One

member of the population is selected at random for a survey involving cell

phone carriers

Express the cigar smoking data as conditional probabilities.


Find the

probability that the selected subject does not smoke cigars given that the

subject is male

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Proportion of males, P(M) = 77% = 0.77

Proportion of females = ( 1 - proportion of males) = (1 - 0.77) = 0.23

Percentage of males who smoke cigar = 11.3% = 0.113

Percentage of female who smoke cigar = 2.1% = 0.021

Expressing cigar smoking Data as conditional probability :

P(male and smoking) = P(M n C) = 0.113

P(Female and smoking) = P(F n C) = 0.021

Probability of smoking cigar Given the person is a male :

P(C | M) = P(M n C) / P(M)

Probability of smoking cigar Given person is a female :

P(C | F) = P(F n C) / P(F)

Find the probability that the selected subject does not smoke cigars given that the subject is male?

No smoking Given Male = 1 - P(C | M)

P(C | M) = P(M n C) / P(M)

P(C | M) = 0.113 / 0.77

P(C | M) = 0.1467

1 - P(C | M)

1 - 0.1467

= 0.8533

The ages of three brothers are consecutive even integers. Three times the age of the youngest brother exceeds the oldest brother's age by 48 years. What is the age of the youngest brother?

Answers

Answer:

28 years

Step-by-step explanation:

youngest brother's age = x

middle brother's age = x+2

oldest brother's age = x+4

3(x-2) = (x+2)+48

[simplify]

3x-6 = x+50

[add 6 to each side]

3x = x+56

[subtract x from each side]

2x = 56

[divide each side by 2]

x = 28

jennas dogs used 9 chew toys last year. The animal shelter used 2,277 chew toys. How many times as many chew toys did the animal shelter use?

Answers

253

2,277 divided by 9=253

hope this helps

Answer:

253 is the answer

Step-by-step explanation:

Divide 2,277 and 9.

enter the number of complex zeros for the polynomial function in the box
f(x)=x^3-96x^2+400

Answers

Answer: Your answer would be 3

Translate sentence into an equation.


Thirteen is 7 more than one-fifth of a number​

Answers

Answer:

[tex]13=7+\frac{1}{5}x[/tex]

Step-by-step explanation:

The answer would be 30

Help I need this ASAP

Answers

Answer:

-(-1)^2-4(-1) =5

[tex]f(x) = 5[/tex]

-2.5(-2-3x)+2.5(-4x-1)=-2x-4x

Answers

Answer:

x=−0.714286

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−2.5(−2−3x)+2.5(−4x−1)=−2x−4x

(−2.5)(−2)+(−2.5)(−3x)+(2.5)(−4x)+(2.5)(−1)=−2x+−4x(Distribute)

(7.5x+−10x)+(5+−2.5)=(−2x+−4x)(Combine Like Terms)

Step 2: Add 6x to both sides.

Step 3: Subtract 2.5 from both sides.

Step 4: Divide both sides by 3.5.

x=−0.714286

List from least to greatest

Answers

Answer:

The answer is C

.......

Can someone help me please!!!!!

Answers

Answer:-4

Step-by-step explanation:

Answer:

forgive me if I'm wrong, but I believe that a is -2.25. someone, please comment if I'm incorrect.

Step-by-step explanation:

I subtracted 3.25a from both sides and got

0.75a+5=2

then I subtracted both sides from 5 and got

0.75a=-3

divided both sides by 0.75

and I got a= -2.25

SOMEBODY HELP!

MY MATH IS DUE TOMORROW HELP ME AND PLEASE EXPLAIN YOUR WORK


Label each of the parts: terms, like terms, coefficients, and constant
terms.

9 + 7y - 2 - 5y

Answers

Answer:

= 7 + 2y.

Step-by-step explanation:

Collect like terms.

(9 − 2 ) + (7y − 5y )

Simplify.

= 7 + 2y.

Hope this helps.

Have a good night ma'am/sir.

Be safe!

HURRY!! THIS ASSIGNMENT IS DUE IN 5MIN!!! THANK YOU!!!!!!


Paula leaves home driving 40 miles per hour. One hour
later, her brother Dan leaves home, driving in the same direction at a speed of 50 miles per hour. How long will it take Dan to catch up to Paula?

Answers

Since Paula left home an hour ago driving at 40mph, it means she has already gone 40 miles by the time Dan left. Dan is driving at 50mph, which is 10 greater than 40. This means that every hour, Dan will drive 10 more miles than Paula, lessening their difference by 10. 40 divided by 10 is 4, so iit will take Dan 4 hours to catch up to Paula:)

which of the following is an improper fraction?​

Answers

Following what? Theres nothing there

Answer:

If the numerator of a fraction is greater than or equal to its denominator, then the fraction is an improper fractio. That is the fraction a/b is called improper if a ≥ b.

Example : 1/1,  2/1,  5/1,  4/3,  6/4,  9/5,  7/7, ...etc

Four lab rats stage a daring escape in broad daylight, eventually establishing a colony behind the laboratory's parking garage. After one month, the population of the colony has risen to eight rats. After two months, the population is sixteen; after three months, thirty-two, and so on. If the pattern continues, how many months will it take for the colony population to reach 1,024 rats?

Answers

Answer: 9 months

Step-by-step explanation:

It's a pattern of multiplying by 2.

4 x 2 = 8

8 x 2 = 16

16 x 2 = 32

32 x 2 = 64

64 x 2 = 128

128 x 2 = 256

256 x 2 = 512

512 x 2 = 1,024

Have a good day! <3

Do you know what the easiest question there is

Answers

Answer:ehm.. no

Step-by-step explanation:

Answer:

1 + 1 = 2

Step-by-step explanation:

estimate the value of 48 square root to the nearest tenth.​

Answers

Answer:

Square Root of 48 to the nearest tenth, means to calculate the square root of 48 where the answer should only have one number after the decimal point. To check that the answer is correct, use your calculator to confirm that 6.92 is about 48.

Step-by-step explanation:

There ya gooooo :)

The value of the expression √48 will be given as 6.93.

What is the value of the expression?

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The expression is given below.

⇒ √48

The power of the number 48 is 1/2. Then the value of the expression will be

[tex]\rightarrow \left ( 48 \right )^{\frac{1}{2}}\\[/tex]

→ 6.93

The value of the expression √48 will be given as 6.93.

More about the value of expression link is given below.

https://brainly.com/question/23671908

#SPJ2

Are these expressions equivalent? Explain why or why not 42+35 7(6+5)

Answers

Answer:

yes, they are equivalent

Step-by-step explanation:

solving each expression fully, you will find that both are equal to 77

Answer:

They are equivalent.

Step-by-step explanation:

7⋅11⋅13+13and7⋅6⋅5⋅4⋅3⋅2⋅1+5 are composite numbers.

Someone please help me on this one I don’t know if this is correct

Answers

Answer:

Can you type the choices please?

pretty sure this is right!

Anthony wants to purchase an electric guitar. The price of the guitar, with tax, is $599. He can save $25 per
month. How long will it take him to save for the electric guitar?


Answers

Answer:

it will take him 24 months to save the guitar

Step-by-step explanation:

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