Solve 0 = 5*r + 24 + 1 for r.
Solve this plz.

A: -5

Solve -200021 - 43901 = -1862*a for a.
Solve this plz.

A: 131

Solve 30*b + 1398 - 1068 = 0 for b.
Solve this plz.

A:
-11