Respuesta :
Answer:
x = 3
Step-by-step explanation:
-3x + 7x = -12
-3x + 7x = 4x
4x = 12
4/4 = 1
12/4 = 3
x = 3
Hope this helps .-.
Answer:
x = 3
Step-by-step explanation:
-3x + 7x = -12
-3x + 7x = 4x
4x = 12
4/4 = 1
12/4 = 3
x = 3
Hope this helps .-.