Q: What is the solution?
Solve 405*f - 37688 = -410*f - 531*f for f.

A: 28

Q: What is the solution?
Solve -916289*r + 1152 = -916325*r for r.

A: -32

Q: What is the solution?
Solve -364 = 10*n - 101*n for n.

A:
4