Solve -551*b + 3632 = -1596 - 5552 - 1893 for b.
Solve this plz.

A: 23

Solve -75 = -161*r + 4 + 82 for r.
Solve this plz.

A: 1

Solve 692*r = 222 + 125 + 12801 for r.
Solve this plz.

A:
19