Solve 2953*c - 2977*c = -48 for c.
Solve this plz.

A: 2

Solve -285*f - 7717 = 604*f - 1494 for f.
Solve this plz.

A: -7

Solve 174*a - 9 - 165 = 0 for a.
Solve this plz.

A:
1