Q: Solve:
Solve 76*n - 278*n = -4040 for n.

A: 20

Q: Solve:
Solve 0 = -17*f + 27 - 16 + 57 for f.

A: 4

Q: Solve:
Solve 1868*y + 437*y + 1269*y - 162900 = -46*y for y.

A:
45