Question

4p + 5c = p.
Solve for c

Answer 1

minus 4p on both sides
you end up with 5c = -3p
divide by 5 on both sides
c = -3/5p

Answer 2

4p + 5c = p

4p - 4p + 5c = p-4p

5c = -3p

5c/5 = -3p/5

c = -3p/5

hope that will help you