Q: Solve:
Solve 19*q - 638 = -167*q - 80 for q.

A: 3

Q: Solve:
Solve -8400 = 173*k - 10855 - 11904 for k.

A: 83

Q: Solve:
Solve 16*w - 38*w + 39*w - 1334 = -41*w for w.

A:
23