Q: Solve:
Solve 578*u + 103126 = -566*u - 497*u - 77384 for u.

A: -110

Q: Solve:
Solve -2080 + 248 - 544 = -132*s for s.

A: 18

Q: Solve:
Solve 64*r + 951 + 599 = 14*r for r.

A:
-31