Q: Solve:
Solve 0 = 18445*b - 18177*b + 7504 for b.

A: -28

Q: Solve:
Solve 9357 = -725*r - 3693 for r.

A: -18

Q: Solve:
Solve 1080884 - 1061116 = -353*n for n.

A:
-56