Question

Solve the equation 3x + 6 = 9x – 18. Factor out the greatest common factor, then solve.

Answer 1

x = 4

Explanation:

3x + 6 = 9x - 18

3x + 6 - 6 = 9x - 18 - 6

3x = 9x - 24

3x - 9x = 9x - 9x - 24

- 6x = - 24

- 6x ÷ - 6 = - 24 ÷ - 6

x = 4