Solve 15*o - 45 = 60 for o.
Solve this plz.

A: 7

Solve -1892*n + 11806 + 12945 + 8313 - 12252 = 0 for n.
Solve this plz.

A: 11

Solve 0 = -12*s + 4*s + 32 for s.
Solve this plz.

A:
4