Q: What is the solution?
Solve -65*n - 2160 = -305*n for n.

A: 9

Q: What is the solution?
Solve -3160*s + 576 = -3208*s for s.

A: -12

Q: What is the solution?
Solve -515*b + 247 = 250*b + 13252 for b.

A:
-17