Write down the solution for this math problem: Solve -47 = -34*u - 174 - 247 for u.
answer: -11

Write down the solution for this math problem: Solve 5 = 77*h - 72*h for h.
answer: 1

Write down the solution for this math problem: Solve 10*o - 8*o - 4 = 0 for o.
answer: 2

Write down the solution for this math problem: Solve 89*c - 123 = 136*c - 88*c for c.
answer:
3