Answer
$q=30$
Work Step by Step
We need to get the q alone. Thus, we cancel out the addition by subtracting 12 on both sides. This leaves us with the equation $q/-3=-10$. In order to cancel out division, we use multiplication, so we multiply both sides by -3 to get that $q=30$. We plug 30 in for q and confirm that our answer is, indeed, correct.
