3 (x - 5) - 5x = 25 + 6x What is the answer and how do you solve this?

1.) expand

3x - 15 - 5x = 25 + 6x

2.) simplify

-2x - 15 = 25 + 6x

3.) add 2x to both sides

-15 = 25 + 6x + 2x

4.) simplify

-15 = 25 + 8x

5.) subtract 25 from both sides

-15 - 25 = 8x

6.) simplify - 15 - 25 to - 40

-40 = 8x

7.) divide both sides by 8

-40/8 = x

8.) x = - 5