Question

An equation is shown below:

Answer 1

Answer: x = 1

Step-by-step explanation:

5 ( 2x - 8 ) + 15 = -15 (write the equation)

5 ( 2x - 8 ) = -30 (subtract by 15 on both sides)

2x - 8 = -6 (divide by 5 on both sides)

2x = 2 (add 8 to both sides)

x = 1 (divide by 2 on both sides)

Answer 2

Answer:

$x = 1$

Step-by-step explanation:

Skills needed: One-Variable Equations, Solving Equations

1) The first thing is to use P.E.M.D.A.S

There are no Parentheses, or Exponents, so we go to multiplication

The quantity we multiply is: $5(2x-8)$

Using distributive property (which is $a(b+c) = ab+ac$), you get:

$5(2x-8) = 5(2x) - 5(8) = 10x - 40$

2) Now, we substitute back in and combine like terms:

$10x-40+15=-15$

Combine the -40 and 15 ($-40+15=-25$)

Then, you will get: ($10x-25=-15$)

3) Add 25 to both sides, to isolate the variable:

$10x = -15+25$, and then -15+25 is 10, so

$10x = 10$

4) Divide by 10 on both sides, and get $x = 1$

Hope this helps and have a nice day!! :) :]