Solve -2449*f = -3980*f + 13212 - 2495 for f.
Solve this plz.

A: 7

Solve 208*n - 1873 + 6114 = -3282 - 8285 for n.
Solve this plz.

A: -76

Solve -5164 - 23951 = 6451*s - 628*s for s.
Solve this plz.

A:
-5