Answer:
x = -5
Explanation:
i took algebra a couple years ago :)
x=-5
3x+12= -3
-12 -12
(subtract 12 from both sides because you want the variable by itself)
3x= -15
(divide by 3 so you can get x completely by itself)
x= -5 (final answer)
6.5m questions
8.7m answers