Q: What is the solution?
Solve 1380 = 85*x - 93*x + 68*x for x.

A: 23

Q: What is the solution?
Solve -25159 + 41995 = 276*c for c.

A: 61

Q: What is the solution?
Solve -1376 = 140*s - 156*s + 102*s for s.

A:
-16