Q: What is the solution?
Solve -91*n = -75*n + 96 for n.

A: -6

Q: What is the solution?
Solve 0 = -48*r - 233*r - 5339 for r.

A: -19

Q: What is the solution?
Solve 0 = -237*d + 160*d - 1155 for d.

A:
-15