Respuesta :

Answer:

hi there!

the correct answer to question is: x=-3

Step-by-step explanation:

you move -12x to the other side by adding it on both sides to get: -3x=9 then you divide -3 on both sides to get x=-3

bbrielle
-12x +9 = -15x
+15x +15x

3x +9 = 0
-9 -9

3x = -9
————
3

x= -3