Q: Solve:
Solve 83*g - 45*g - 39*g = 0 for g.

A: 0

Q: Solve:
Solve -37*l + 48*l + 65*l - 76 = 0 for l.

A: 1

Q: Solve:
Solve 17*c + 309 - 139 = 0 for c.

A:
-10