Q: What is the solution?
Solve -15 = -0*n - 3*n for n.

A: 5

Q: What is the solution?
Solve -63 + 269 + 305 = 45*k + 106 for k.

A: 9

Q: What is the solution?
Solve 112*h + 132 = 90*h for h.

A:
-6