Q: Solve:
Solve f = -0*f - 3 for f.

A: -3

Q: Solve:
Solve 3642*k + 1280*k - 89246 - 224714 = -2927*k for k.

A: 40

Q: Solve:
Solve 28*y = -8678 + 9266 for y.

A:
21