Solve -655*a = -631*a - 504 for a.
Solve this plz.

A: 21

Solve 7735 = 320*m - 4274 - 5271 for m.
Solve this plz.

A: 54

Solve -24*g + 13*g = 55 for g.
Solve this plz.

A:
-5