Q: What is the solution?
Solve -104*u - 1069 - 1197 = -810 for u.

A: -14

Q: What is the solution?
Solve 6*o + 11 = 5 for o.

A: -1

Q: What is the solution?
Solve 633*i + 152*i + 22659 = 156*i - 450*i for i.

A:
-21