Q: What is the solution?
Solve -8*f - 70 = -22*f for f.

A: 5

Q: What is the solution?
Solve -124 = 3*h + 28*h - 31 for h.

A: -3

Q: What is the solution?
Solve -30*u + 177003 = 177723 for u.

A:
-24