Q: Solve -80 = -13*i - 80 for i.

A: 0

Q: Solve 9036*o + 2548 = 8938*o for o.

A: -26

Q: Solve 0 = 6*i + 2 + 4 for i.

A: -1

Q: Solve 0 = 999*q - 344*q - 198*q - 220*q + 15168 for q.

A:
-64