Q: Solve:
Solve -159*o = -174*o + 210 for o.

A: 14

Q: Solve:
Solve -104 = 19*f - 9*f + 36 for f.

A: -14

Q: Solve:
Solve 0 = -151*h - 0*h - 19174 + 15701 for h.

A:
-23