Q: What is the solution?
Solve -4275 = -186*h + 91*h for h.

A: 45

Q: What is the solution?
Solve 168*n - 181*n = 39 for n.

A: -3

Q: What is the solution?
Solve -2719359*z = -2719369*z - 650 for z.

A:
-65