Q: What is the solution?
Solve -85*l + 49*l = 158 + 202 for l.

A: -10

Q: What is the solution?
Solve 22*w - 255 = -13 for w.

A: 11

Q: What is the solution?
Solve 0 = 1443*f - 7494 - 48370 - 65348 for f.

A:
84