Q: What is the solution?
Solve 78 = 3*h + 93 for h.

A: -5

Q: What is the solution?
Solve -17*n - 16*n - 99 = 0 for n.

A: -3

Q: What is the solution?
Solve -2*c + 24 = -14*c for c.

A:
-2