Work Step by Step
We first combine like terms to get that $-2a+2=-14$. We need to get the a alone. Thus, we cancel out the addition by subtracting 2 on both sides. This leaves us with the equation $-2a=-16$. In order to cancel out multiplication, we use division, so we divide both sides of the equation by -2 to get that $a=8$. We plug 8 in for a and confirm that our answer is, indeed, correct.