Problem: Math Problem
Solve 219*s - 13233 = -163*s + 43*s - 62*s for s.

A: 33

Problem: Math Problem
Solve -415*r + 777*r - 442*r - 1680 = 0 for r.

A: -21

Problem: Math Problem
Solve -221*h - 29491 = 88*h + 74*h for h.

A:
-77