## Algebra 1: Common Core (15th Edition)

$p=-2$
We need to get the p alone. Thus, we cancel out the addition by subtracting 9 on both sides. This leaves us with the equation $-3p=6.$ In order to cancel out multiplication, we use division, so we divide both sides by -3 to get that $p=-2$. We plug -2 in for p and confirm that our answer is, indeed, correct.