Q: What is the solution?
Solve -19*r - 143 + 44 - 110 = 0 for r.

A: -11

Q: What is the solution?
Solve 9508 = -583*c + 33975 + 8764 for c.

A: 57

Q: What is the solution?
Solve -148 = -16*s + 11 - 15 for s.

A:
9