Question

Solve P = 4(3a – b) for a in terms of P and b. You must show all work.

Answer 1

P = 4(3a – b)
Distribute 4:
P = 12a - 4b
transfer 4b to the other side
P + 4b = 12a -4b + 4b
P + 4b = 12a
divide both sides by 12
(P+4b)/12 = (12a)/12
(P+4b)/12 = a