Q: Solve:
Solve -68*f = -2075299 + 2072511 for f.

A: 41

Q: Solve:
Solve 0 = -49*d + 132 - 83 for d.

A: 1

Q: Solve:
Solve 691*f + 7138 + 10369 = 404*f for f.

A:
-61