Q: What is the solution?
Solve -3*u = 15 - 27 for u.

A: 4

Q: What is the solution?
Solve -15*c = 26*c + 164 for c.

A: -4

Q: What is the solution?
Solve 2796*f = 500*f + 3532 - 81596 for f.

A:
-34