Write down the solution for this math problem: Solve -478 - 2385 = -102*r + 2543 for r.
answer: 53

Write down the solution for this math problem: Solve -112 = -5*t - 127 for t.
answer: -3

Write down the solution for this math problem: Solve 16*c + 68 = -c for c.
answer: -4

Write down the solution for this math problem: Solve 46963 - 11048 = 3734*m - 42499 for m.
answer:
21