Q: What is the solution?
Solve -79527*u - 406 = -79541*u for u.

A: 29

Q: What is the solution?
Solve -312*h = -318*h - 24 for h.

A: -4

Q: What is the solution?
Solve 12*r - 177 + 47 = -82 for r.

A:
4