Solve 0 = -130*n + 123*n for n.
Solve this plz.

A: 0

Solve 0 = -21*r + 32*r - 22 for r.
Solve this plz.

A: 2

Solve -21432*q = -21767*q - 8375 for q.
Solve this plz.

A:
-25