Solve -33 = -5*u - 53 for u.
Solve this plz.

A: -4

Solve 0 = 11*o + 47 - 113 for o.
Solve this plz.

A: 6

Solve 15*c + 166 = 7*c + 94 for c.
Solve this plz.

A:
-9