Q: What is the solution?
Solve 1538 - 271 - 587 = 17*a for a.

A: 40

Q: What is the solution?
Solve -4*f + 82 = 98 for f.

A: -4

Q: What is the solution?
Solve 0 = 12*o + 22 + 14 for o.

A:
-3