Question

Solve for c.

Answer 1

The answer is c = (5 - b)/3ab

3abc + b = 5

Subtract b from both sides:
3abc + b - b = 5 - b
3abc = 5 - b

Divide both sides by 3ab:
3abc/3ab = (5 - b)/3ab
c = (5 - b)/3ab