Q: What is the solution?
Solve 0 = 556*f - 603*f - 261 - 256 for f.

A: -11

Q: What is the solution?
Solve 8139*a = 8117*a + 286 for a.

A: 13

Q: What is the solution?
Solve 292*h - 293*h = 5 for h.

A:
-5