Q: What is the solution?
Solve -3447*n + 1157*n - 183761 = 990*n - 55841 for n.

A: -39

Q: What is the solution?
Solve 0 = 7*f - 2*f - 20 for f.

A: 4

Q: What is the solution?
Solve 0 = -3*x + 5 - 8 for x.

A:
-1