Q: What is the solution?
Solve -9*w - 13 = -31 for w.

A: 2

Q: What is the solution?
Solve 0 = 1202*b + 3755*b + 351947 for b.

A: -71

Q: What is the solution?
Solve -7*h - 7 + 21 = 0 for h.

A:
2