Write down the solution for this math problem: Solve 3880 = -133*t + 7604 for t.
answer: 28

Write down the solution for this math problem: Solve 0 = 26*c + 4*c + 50*c - 880 for c.
answer: 11

Write down the solution for this math problem: Solve -107*f - 1566 = 77*f - 10*f for f.
answer: -9

Write down the solution for this math problem: Solve 7 = o + 10 for o.
answer:
-3