Write down the solution for this math problem: Solve -6509*m + 6447*m + 138 = 1502 for m.
answer: -22

Write down the solution for this math problem: Solve -1012802 + 325295 = -2647*i - 16616*i + 2182680 for i.
answer: 149

Write down the solution for this math problem: Solve 1861*c - 79*c = -33858 for c.
answer: -19

Write down the solution for this math problem: Solve 1672 = -124*n - 8*n + 220*n for n.
answer:
19