Answer: (3x - 12) + 5x
Step-by-step explanation: Distribute the 3 inside the parentheses to get
(3x - 12) + 5x, if they want it simplified more you could add 3x to 5x to get 8x - 12
Step-by-step explanation:
3 multiply both (x-4)
3x-12+5x collect like term
8x-12
