Q: What is the solution?
Solve 171 = 11*u + 215 for u.

A: -4

Q: What is the solution?
Solve -6*h = h - 7 for h.

A: 1

Q: What is the solution?
Solve -186*w - 14*w - 13095 = 132*w + 153*w for w.

A:
-27