Q: Solve 348791 = 64*h + 351799 for h.

A: -47

Q: Solve -89*d + 101*d + 1463 = -65*d for d.

A: -19

Q: Solve 135 = -15*q + 42*q for q.

A: 5

Q: Solve -173094*u + 172786*u - 12628 = 0 for u.

A:
-41