Respuesta :

Answer:

45

Step-by-step explanation:

Answer: x=4

Explanation: 4= 12-2x
4= 12+-2x
4= -2x+12
-2x+12=4
-2x+12-12=4-12
-2x=-8
-2x = -8
——- ——-
-2 -2

X=4

Hope that made sense! Good luck!!