Q: Solve:
Solve 290*n + 1929 = 336*n + 411 for n.

A: 33

Q: Solve:
Solve 11*s + 15 + 29 = 0 for s.

A: -4

Q: Solve:
Solve -7638 + 3807 = 2*s - 3807 for s.

A:
-12