Solve 119*r + 1031944 - 1034443 = 0 for r.
Solve this plz.

A: 21

Solve -125 - 29 = -22*b for b.
Solve this plz.

A: 7

Solve 124*z = 76*z - 1728 for z.
Solve this plz.

A:
-36