Q: Solve:
Solve 2581 = -2*v + 2587 for v.

A: 3

Q: Solve:
Solve -252109 = 415*n + 4416*n + 1318*n for n.

A: -41

Q: Solve:
Solve 8330597 - 8301197 = 490*p for p.

A:
60