Q: What is the solution?
Solve 2100 + 1967 = 137*f + 10573 + 5002 for f.

A: -84

Q: What is the solution?
Solve 3326*b = 203*b + 421*b - 809*b + 101819 for b.

A: 29

Q: What is the solution?
Solve l - 29 = -35 for l.

A:
-6