Q: What is the solution?
Solve 17*r - 13*r = -8 for r.

A: -2

Q: What is the solution?
Solve -950*p - 299*p = 515*p - 144648 for p.

A: 82

Q: What is the solution?
Solve 132*r = 517*r + 6160 for r.

A:
-16