Write down the solution for this math problem: Solve 0 = 402*b - 39729981 + 39722745 for b.
answer: 18

Write down the solution for this math problem: Solve 127*c - 9302 - 15406 = -725*c for c.
answer: 29

Write down the solution for this math problem: Solve -3*f + 2401 - 2440 = 0 for f.
answer: -13

Write down the solution for this math problem: Solve -1151*x + 1144*x = 77 for x.
answer:
-11