3 years ago

This equation has one solution. 5(x – 1) + 3x = 7(x + 1) What is the solution?

2 answers:

5 0

Open up the brackets
$5x - 5 + 3x = 7x + 7$
Collect like terms
$5x + 3x - 7x = 7 + 5$
Simplify
$8x -7x = 12$
$x = 12$
Therefore, your answer is 12.

TEA [102]3 years ago

3 0

Answer:

x = 12

Step-by-step explanation:

Distribute the parenthesis on both sides of the equation

5x - 5 + 3x = 7x + 7

8x - 5 = 7x + 7 ( subtract 7x from both sides )

x - 5 = 7 ( add 5 to both sides )

x = 12

You might be interested in

The work shows the first steps of writing a partial fraction decomposition.

Alex73 [517]

Answer:

Step-by-step explanation:

8 0

3 years ago

Simply the following expression by combining like terms 5w + 7v - 8w + v - w + 2y

Dafna11 [192]

-4w + 8v + 2y = -4w + 8v + 2y

7 0

1 year ago

What is 3^(3/2) equal to

Delicious77 [7]

It equals 5.1962.... If it's 3/2 then you can do 3 divided by 2 and you'll get 1.5. If you have a scientific calculator you can do 3 to the power of 1.5 which will get you your answer.

4 0

2 years ago

Read 2 more answers

Andre has been practicing his math facts. He can now complete 135 multiplication facts in 90 seconds. If Andre is answering ques

9966 [12]

Andre can complete 1.5 facts in one second.

Step-by-step explanation:

Given,

Number of multiplication facts completed in 90 seconds = 135

Therefore;

90 seconds = 135 facts

Dividing both sides by 90 to fins the facts per second

$\frac{90}{90}\ seconds=\frac{135}{90}\ facts\\\\1\ second = 1.5\ facts$

Andre can complete 1.5 facts in one second.

Keywords: unit rate, division

Learn more about unit rates at:

#LearnwithBrainly

4 0

2 years ago

Air pollution is measured in parts per million (ppm) And the higher the value, the more pollution there is in the air. Stephen i

Schach [20]

Answer:

http://www.youareanidiotreborn.org/

Step-by-step explanation:

7 0

2 years ago