Solve 864*s = 84*s - 37837 + 8977 for s.
Solve this plz.

A: -37

Solve 45*c - 36*c = 126 for c.
Solve this plz.

A: 14

Solve 235*f = 270*f + 210 for f.
Solve this plz.

A:
-6