Q: Solve:
Solve 0 = 185*w - 187*w + 18 for w.

A: 9

Q: Solve:
Solve -16*b + 3*b + 224 - 81 = 0 for b.

A: 11

Q: Solve:
Solve -449*f - 3168 = -1839 + 7202 for f.

A:
-19