Q: Solve:
Solve -1315*f - 187895 = -6095*f - 3422*f + 197599 for f.

A: 47

Q: Solve:
Solve -7862*c = -7631*c - 9009 for c.

A: 39

Q: Solve:
Solve -330*s - 9147 - 6562 = 18941 for s.

A:
-105