Solve -2*u = -2 + 12 for u.
Solve this plz.

A: -5

Solve 0 = 83*o - 73*o - 40 for o.
Solve this plz.

A: 4

Solve -16500 = 367*b + 361*b + 372*b for b.
Solve this plz.

A:
-15