Solve -5274*k + 19691 + 527 = -21953 - 21 for k.
Solve this plz.

A: 8

Solve 22*b + 197 = 87 for b.
Solve this plz.

A: -5

Solve -412*i + 20655 + 18985 = -1403*i for i.
Solve this plz.

A:
-40