Q: What is the solution?
Solve -162159*l - 425 = -162134*l for l.

A: -17

Q: What is the solution?
Solve 0 = -50*n - 13759 + 12159 for n.

A: -32

Q: What is the solution?
Solve 4*r = -18*r - 44 for r.

A:
-2