Solve 644*i - 1068 = 1000*i for i.
Solve this plz.

A: -3

Solve -14*o = -7*o - 35 for o.
Solve this plz.

A: 5

Solve 220*n - 2275 = -0*n + 90*n + 39*n for n.
Solve this plz.

A:
25