Respuesta :

Answer:

a = 2

Step-by-step explanation:

5a−12=−2

Solve :

5a = -2 +12

5a = 10

a = 10/5

a= 2

You want to try to isolate the a. First we add 12 to both sides so it turns out to be:
5a=10
Now we need to divide by 5 on both sides to isolate it. 10/5=2

a=2