Solve w - 2 + 9 = 0 for w.
Solve this plz.

A: -7

Solve -290875*o = -291116*o - 7676 - 7266 for o.
Solve this plz.

A: -62

Solve 117*k = 68*k + 294 for k.
Solve this plz.

A:
6