Q: What is the solution?
Solve 90*o - 93 = -30*o + 213*o for o.

A: -1

Q: What is the solution?
Solve -2*w - 2 = -6 for w.

A: 2

Q: What is the solution?
Solve 1538*h = 1527*h - 33 for h.

A:
-3