Mathematics High School

4 – 2(x + 7) = 3(x + 5)

Answers

Answer 1

Answer:

x = -5

Step-by-step explanation:

4 – 2(x + 7) = 3(x + 5)

Distribute

4 - 2x-14 = 3x+15

Combine like terms

-2x-10 = 3x+15

Add 2x to each side

-2x-10 +2x= 3x+15+2x

-10 = 5x+15

Subtract 15 from each side

-10-15 = 5x+15-15

-25 = 5x

Divide by 5

-25/5 = 5x/5

-5 =x

Answer 2

Answer:

x = -5

Step-by-step explanation:

4 - 2(x + 7) = 3(x + 5)

so, let's do the multiplications. remember, when two terms are multiplied, then everything of the left is multiplied with everything on the right. and a "-" flips signs.

2(x + 7) = 2x + 14

3(x + 5) = 3x + 15

so, in total

4 - 2x - 14 = 3x + 15

now, we add combinable things together, and we can also move things from one side of the equation to the other (by adding our subtracting the same thing on both sides, so that the value of the expression remains unchanged).

-2x - 10 = 3x + 15

-25 = 5x

and now, what applied to adding and subtracting also aims to multiplication and division. again, it is important to do the same thing to both sides.

-5 = x

Related Questions

What is 1,683 divided by 20 estimating

Answers

Answer:

To sum up, 1683/20 = 84.15. The number has 2 decimal places. As division with remainder the result of 1683 ÷ 20 = 84 R 3.

84 the answer my guy
Mark as brainlist my brother

The amount of motor oil used during the month by the local stock car racing team is g(t) hundred gallons, where t is the number of months past March of a given year.
(a) Write a sentence of interpretation for
g(4) = 13.10.

Answers

The answer is "The local inventory car racing team used 1310 gallons of engine oil in July".

The function consists of 3: input, output, as well as the relationship between the two.The interpretation of a mathematical formalism is to derive important data from a line chart or given symbolic image.Therefore, the amount of oil that the regional sports car racing team is using during the month is G(t), which is 100 gallons, wherein T is the number of months that very last March.

Given:

[tex]\to \bold{g(4) = 13.10}[/tex]

If [tex]\bold{g(4)=13.10}[/tex] means that [tex]\bold{1310 }[/tex] gallons of motor oil was used by the local stock car racing squad in July.So, the final answer is "The local inventory car racing team used 1310 gallons of engine oil in July".

 Learn more:

brainly.com/question/12962598

5. The population of Springfield has increased 33.4% since last year.-
Last
year the population was 9,000. How much has the
population increased?
- (1) 297 (2) 3,000 (3) 12,000 (4) 2,970

Answers

Answer:

33.4%= 33.4 ÷100×9000= 3006.0

cosA.cosB-sin. is same aso Sin * (A + B) b. Sin * (A - B) d. Cos * (A - B) c. Cos * (A + B)
​

Answers

Sorry i think like that the answer n sorry my write bad.

Thaks for your poin

50 POINTS WILL MARK BRAINLIEST Below is the table of values of a function. Write the output when the input is n. (picture attached)

Answers

Answer:

n = 14

Step-by-step explanation:

12 - 10 = 2

12 + 2 = 14

Answer:

2n

Step-by-step explanation:

Observation from input and output values:

4 = 2*210 = 5*212 = 6*2

Since each output is double of corresponding input, the missing output is:

n*2 = 2n

solve for x
4x+5x-2x=42​

Answers

Answer:

if 4x+5x-2x=42 then the value of x=6

What is the distance across the lake?
​

Answers

Answer:

you have to use the formula

Step-by-step explanation:

length times with time height

Answer:

x = 15.008

Step-by-step explanation:

9^2 + x^2 = 17.5^2

x^2=225.25

x = 15.008

How do you find the slope of a line given the points ( -1 , -1 ) and ( 5 , -3 ) on the line?

Answers

Answer:

-1/3

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

-3-(-1)/5-(-1)

-2/6

-1/3

Best of Luck!

2 x 2 x1000000 x4000 x90 x091

Answers

Answer:

131040000000000

Step-by-step explanation:

calculator :)))

The answer is 1.3968 to the 14th power

1.39680000000000^14

how to Calculate the value of the angles indicated by small letters
​

Answers

Answer:

all you need to do is to follow steps . you can also use trigonometric ratios to get your unknown angle or using cosine rule and sine rule.

HELPPP MEE OUT PLZZZZZ

Answers

its 54 , they gave you one answer and you know its a right angle. You do 90 - 36 and get 54 :)

how do you right two million four hundred thousand fifty six

Answers

Answer:

2,400,056

Step-by-step explanation:

Answer:

2,400,056

Step-by-step explanation:

2 million= 2,000,000

four hundred thousand=400,000

fifty-six=56

727÷9 Pleaase HEEEELLLPPP!!!!!!!!

Answers

Answer:

80.77777778

Step-by-step explanation:

when dividing 727 by 9, think about how many times does 9 go into 7? none.

next how many times does 9 go into 72? 8 times!

but since we have established 9 cannot go into 7 we need to know how many times does 9 go into 727, since it goes into 72 8 times already try adding a zero behind that 8. So what is 80(9)? it's 720. So the answer would be 720 with a remainder of 7. :)

I would love to know how to do this

Answers

The answer is C .
Hope it helps
Answer: C
First you solve the question as it is written, x=6, then you multiply 2x-4 by -1 and solve like that to get both answers

Please mark brainliest

URGENT!! Please help me
Draw the answer on and explain if you can please
Thanks a lot!!

I already filled in the 12345 but I need help on the top row.​

Answers

Answer:

Step-by-step explanation:

Evaluate the expression, given functions f and h:  

f(x) = 3x − 1,

 

h(x) = −2x2 + 3x − 2.

f  

7

3

− h(−2)

Answer:

2.5 5 7.5 10 12.5

Step-by-step explanation:

b) 2.5*6=15

What is the difference between 34343 and 1212

Answers

Answer:

33131

Step-by-step explanation: 34343-1212= 33131

Hi! I'm happy to help!

To find the difference, means to use subtraction. So, to solve this, we need to subtract.

34343-1212=33131

The difference between 34343 and 1212 is 33131.

I hope this was helpful, keep learning! :D

Which of the following expressions is equivalent to 5 x - ( 4 + 2 ( x - 1 ))

Answers

Answer:

Dhsyshebrifhsjw

Step-by-step explanation:

a rectangle room has an area of 400 square feet. the length is 7 feet less than twice the width. find the dimensions of the room.

Answers

2800 x 7 That’s what I’m guessing

Which expression is equivalent to the one shown below?
163
A. 16.3
B. 4/3
C. 4.3
D. 16./3
SUS

Answers

Answer:

The choose B. 4√3

I hope I helped you^_^

10
(i)
(ii)
Express 17 150 as a product of its prime factors in index notation.
[1]
Find the smallest integer n, such that 17 150n is a perfect square.
[1]
5x17150
It is given that
is a prime number. State all possible integer values of x.
(iii)
CTX 120167

Answers

Answer:

[tex]ii)\\a) 17150=2*5^2*7^3\\b) 17150*n=k^2 ==> n=2*7=14\\\\iii)\\\sqrt[3]{\dfrac{5*2*5^2*7^3}{n} } =7*5*\sqrt[3]{\dfrac{2}{n} } \\\\1)\ n=2*5^3=250\\2)\ n=2*7^3=686\\[/tex]

You plan to cut a board into 3 pieces to repair part of a railing. You are going to cut the two ends of the board off into two equal pieces that are 3.1 feet long, if the remaining piece needs to be 2.27 times longer than the each of the first two cuts what length board should you buy? Round to the nearest tenth

Answers

Answer:

the answer might be 20

Step-by-step explanation:

first you add 3.1 to 3.1 to get 6.2

then you multiply 6.2 by 2.27

then you add the answer you get from that to 3.1+3.1 to get the final length ‍to be 20.274 and that would be 20 in the nearest tenth

wt is the difference between 1/3 of 18 and 2/5 of 40

Answers

Answer:

1) 6/10

2) 16/100

Step-by-step explanation:

1/3x18

2/5x40

of = multiply

Answer:

10

Step-by-step explanation:

[tex]\frac{1}{3}[/tex] × 18 = 18 ÷ 3 = 6

[tex]\frac{2}{5}[/tex] × 40 = (40 ÷ 5) × 2 = 8 × 2 = 16

Difference = 16 - 6 = 10

Tim scored 15 points playing a boardwalk game. His next turn he lost 23 points. How many points does Tim have now?

Answers

Answer:

Tim has -8 points.

Step-by-step explanation:

15 - 23

Another way to solve for this is reversing the order the numbers are shown:

23 - 15

Just remember the answer will be negative because Tim is losing more points than he originally had.

-8

Pls help me sry for asking so much..

Answers

Answer:

Z = 3/2

Hope it helps!! :)

Determine the vertical distance and horizontal distance of P(-2,1) and Q(8,7).
​

Answers

Answer:

5.830952 should be the answer  

Step-by-step explanation:

Some students charted the weight of sports equipment for an experiment. What is the total weight of the basketball, football, and volleyball equipment in pounds?

Answers

Answer:

All together its 3 pounds total of all the weights if it not, then its 1.375oz for Basketball, 1oz for Football, and 0.625 for Volleyball

Step-by-step explanation:

Convert the Oz to pounds and add them.

In a triangle, two angles have measures of 45 degrees and 85 degrees. What is the measure of the third angle in this triangle?

Answers

Answer:

50 degrees

Step-by-step explanation:

All three angles in a triangle add up to 180 degrees. If you know the measure of two angles, add them together and subtract the sum from 180.  

45+85=130.  Then, subtract 130 from the total, or 180.   180-130=50. The measure of the third angle of the triangle is 50 degrees.

Solve 4(x + 1) = 4x + 4

Answers

Answer:

x is all real numbers

Step-by-step explanation:

4(x + 1) = 4x + 4

Distribute

4x+4 = 4x+4

Subtract 4x from each side

4x+4-4x = 4x+4-4x

4=4

This is always true so there are infinite solutions

x is all real numbers

12- (17 + 1) = (12 - 17) + 1
O A. True
B. False

Answers

Answer:

False.

Step-by-step explanation:

.

17+1= 18

12= -6

12-17= -5 + 1 =-4.

Answer:

False

Step-by-step explanation:

12- (17 + 1) = (12 - 17) + 1

PEMDAS says parentheses first

12- (18) = (-5) + 1

Then add and subtract

-6 = -4

They are not equal

6x^2+4-7x-2x^3


Please help fast

Answers

6x² + 4 - 7x - 2x³

This is the simplest form for this equation.

Maybe I could solve furthermore if the value of X was given

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