# Question #bfd0e

$- 3 x + 12$ and $12 - 3 x$ are both correct and are exactly equivalent, as addition is commutative (meaning the order of operations doesn't affect the final answer).
For example, $0 - 3 + 12 = 9$ and $0 + 12 - 3 = 9$
This is the case where $x = 1$ in your answer.