Answer:
C
Step-by-step explanation:
There is 8 on one side and 2a + 2 on the other so we can eliminate answer D.
8=2a+2
We take away 2 from both sides getting a on one side. So 6=2a. To find a we do the inverse way to solve the equation. To get 6 we multiply "a" by 2. To get "a" we dp 6/2 = 3. boom a=3 so C is your answer