Q: What is the solution?
Solve 2610*f = -20*f + 142020 for f.

A: 54

Q: What is the solution?
Solve -2700*q - 23407 - 30779 - 12234 = -240*q for q.

A: -27

Q: What is the solution?
Solve -129 = -61*b - 1442 + 154 for b.

A:
-19