Solve 160*k + 430 + 2837 + 253 = 0 for k.
Solve this plz.

A: -22

Solve -116*o - 184*o - 300 + 1200 = 0 for o.
Solve this plz.

A: 3

Solve 280*d + 1411 + 4237 = -73*d for d.
Solve this plz.

A:
-16