Answer:
x = -1
Explanation:
When given the following equation:
3(-4) = 12x
Simplify the left, side to perform the given operations. Remember, when there are parentheses but no operations between the two parentheses, then the operation is mutliplciation.
-12 = 12x
Inverse operations, divide both sides by (12) to undo the operation on the left side,
-1 = x