X=11 Solve it step by step. Distribute the 3 to the parentheses. You will get 6x-3x-24=9. Then solve like an equation. Subtract like terms. 6x-3x which is 3x. Now your equation is 3x-24=9. Then you add 24 to both sides(24+24 and 9+24) you end with 3x=33. Finally divide by 3 on both sides. X=11