Solve -191*o - 209*o = -4400 for o.
Solve this plz.

A: 11

Solve 2665*d - 84 = -2658*d + 5344*d for d.
Solve this plz.

A: -4

Solve -42836 = 4412*w - 1251*w - 248301 for w.
Solve this plz.

A:
65