Solve 1509*d - 42973 - 25667 = -1611*d for d.
Solve this plz.

A: 22

Solve 14554*w - 14705*w + 1057 = 0 for w.
Solve this plz.

A: 7

Solve 505 + 1118 = 323*o - 638 for o.
Solve this plz.

A:
7