Q: Solve:
Solve -135*n = 561*n + 1864*n + 46080 for n.

A: -18

Q: Solve:
Solve 0 = -24*h + 31*h + 35 for h.

A: -5

Q: Solve:
Solve 625*r - 498 = -399 - 1349 for r.

A:
-2