Q: What is the solution?
Solve -285*c + 222*c = 315 for c.

A: -5

Q: What is the solution?
Solve -10480*s = -10479*s for s.

A: 0

Q: What is the solution?
Solve 2120*k - 2179*k + 1593 = 0 for k.

A:
27