Q: Solve -128*n + 130*n = -4 for n.

A: -2

Q: Solve -12725*t = -12606*t + 2023 for t.

A: -17

Q: Solve 0 = -1655*u + 2412*u + 9622 - 38388 for u.

A: 38

Q: Solve 108*c = 111*c + 9 for c.

A:
-3