Solve -23*i - 81 - 159 = -47*i for i.
Solve this plz.

A: 10

Solve 315*o = 886*o + 9136 for o.
Solve this plz.

A: -16

Solve 61*u - 2020 + 2325 = 0 for u.
Solve this plz.

A:
-5