Q: Solve:
Solve 339*n - 3782*n + 61902 = 3435*n for n.

A: 9

Q: Solve:
Solve -1248 = -5323*u + 5307*u for u.

A: 78

Q: Solve:
Solve -305*z - 68682 - 9932 = 3940*z - 827*z for z.

A:
-23