Q: Solve:
Solve 0 = -81*t - 21 + 4395 for t.

A: 54

Q: Solve:
Solve -18*n + 22*n = 12 for n.

A: 3

Q: Solve:
Solve 0 = 415*y - 233*y + 6595 + 1413 for y.

A:
-44