Question

7. Solve the formula M=2P+3Q for the variable Q.

A.
Q=M+2P3
B.
Q=3(M−2P)
C.
P=M−3Q2
D.
Q=M−2P3

Answer 1

The answer is Q=(M−2P)/3

M = 2P + 3Q

Subtract 2P from both sides:
M - 2P = 2P + 3Q - 2P
M - 2P = 3Q

Divide both sides by 3:
(M - 2P)/3 = 3Q/3
(M - 2P)/3 = Q