Q: What is the solution?
Solve -144 = 11*r - 67 for r.

A: -7

Q: What is the solution?
Solve 59*s - 42*s - 574 = 134*s + 11 for s.

A: -5

Q: What is the solution?
Solve -7436*x + 368*x - 7988*x + 1370096 = 0 for x.

A:
91