Q: What is the solution?
Solve 0 = 7*x - x + 36 for x.

A: -6

Q: What is the solution?
Solve 259 = 35*c + 294 for c.

A: -1

Q: What is the solution?
Solve 240*o + 282 - 1387 = 155*o for o.

A:
13