Q: Solve:
Solve -138*q - 1450 = -42*q - 6502 - 3012 for q.

A: 84

Q: Solve:
Solve 79984*h = 79861*h - 4059 for h.

A: -33

Q: Solve:
Solve -4469 + 4634 = -33*f for f.

A:
-5