Solve 0 = -2*w + 1 - 7 for w.
Solve this plz.

A: -3

Solve -5*s - 56*s = 14*s + 825 for s.
Solve this plz.

A: -11

Solve 0 = 18*d + 11 + 115 for d.
Solve this plz.

A:
-7