Q: Solve:
Solve -71378 + 80107 = 301*d for d.

A: 29

Q: Solve:
Solve 297 = 289*v - 8441 + 1224 for v.

A: 26

Q: Solve:
Solve 0 = -2*f + 7*f - 15 for f.

A:
3