p is -7
-4 = 2p + 10
we need the p to stand alone. So we make it the subject of formula
subtract 10 from both sides:
-4 -10 = 2p + 10 - 10
-14 = 2p + 0
-14 = 2p
divide both sides by 2:
-14/2 = 2p/2
-7 = p
The value of p is -7
