Q: Solve 0 = -z - 4 - 1 for z.

A: -5

Q: Solve 25*o - 13836 = -13511 for o.

A: 13

Q: Solve -24228 - 59226 = -3974*o for o.

A: 21

Q: Solve 0 = -94*w - 1035 + 286 - 191 for w.

A:
-10