Question

8x+15=3x-20 please explain how to solve this

Answer 1

You said 8x + 15 = 3x - 20

Subtract 3x from each side: 5x + 15 = - 20

Subtract 15 from each side: 5x = - 35

Divide each side by 5 : x = - 7

Answer 2

8x + 15 = 3x - 20

First, take away '3x' from both sides.

`8x + 15 - 3x = -20`
Second, subtract '8x - 3x' to get '5x'.

`5x + 15 = -20`
Third, take away '15' from both sides.

`5x = -20 - 15`
Fourth, add '-20 - 15' to get '-35'.

`5x = -35`
Fifth, divide both sides by '5'.

`x = (35)/(5)`
Sixth, how many times does 5 go into 35? 35 ÷ 5 = 7.

`x = -7`

Answer: x = -7