Q: What is the solution?
Solve -559*o + 201*o = -18*o + 3060 for o.

A: -9

Q: What is the solution?
Solve -64*r + 4587 = 2007 - 5356 for r.

A: 124

Q: What is the solution?
Solve 6932*b = 8437*b - 45150 for b.

A:
30