Q: Solve:
Solve -1387*n - 6856 = -24887 for n.

A: 13

Q: Solve:
Solve -204*r + 292*r + 321 = -1527 for r.

A: -21

Q: Solve:
Solve 24*t - 24532 + 6415 = -273*t for t.

A:
61