Solve 92*f - 88*f + 12 = 0 for f.
Solve this plz.

A: -3

Solve -6 = -134*l + 109*l - 1581 for l.
Solve this plz.

A: -63

Solve -1142*u = -520*u + 727*u - 60705 for u.
Solve this plz.

A:
45