Q: What is the solution?
Solve -37*o + 50*o + 588 = -36*o for o.

A: -12

Q: What is the solution?
Solve 131*f - 14 = -145 for f.

A: -1

Q: What is the solution?
Solve -168*r = 42*r - 3363 + 213 for r.

A:
15