Solve -o - 8 = 3*o for o.
Solve this plz.

A: -2

Solve 255*f + 5769 + 10755 = -9781 + 7435 for f.
Solve this plz.

A: -74

Solve -42*u - 57*u + 1023 = -6*u for u.
Solve this plz.

A:
11