Q: What is the solution?
Solve 4687 + 5181 = -670*f + 428 - 4630 for f.

A: -21

Q: What is the solution?
Solve 0 = 25*g - 153 + 253 for g.

A: -4

Q: What is the solution?
Solve 82*o - 79*o = 15 for o.

A:
5