Q: What is the solution?
Solve -52 = -2*o + 54*o for o.

A: -1

Q: What is the solution?
Solve 4*r + 53 - 85 = 0 for r.

A: 8

Q: What is the solution?
Solve -495*o + 275 = -520*o for o.

A:
-11