Solve -2*u + 6590 - 6600 = 0 for u.
Solve this plz.

A: -5

Solve -148*g = -62*g + 688 for g.
Solve this plz.

A: -8

Solve 49*s + 463 = 23*s + 99 for s.
Solve this plz.

A:
-14