Respuesta :
Answer: A= -3
Step-by-step explanation: Distribute the four into the 1 and 3 then combine the 4 and 2 then subtract the 6 from both sides then divide -12a by 36 and you will get -3
Answer:
Step-by-step explanation:
2+4=6
6x1=6 and 6x3a=18a
6-18a=42
42-6=36
18a=36
18a/18 and 36/18
a=2