Question: What is the solution?

Solve -16 + 31 = -5*o for o.

Answer: -3

Question: What is the solution?

Solve 0 = -1080*n - 916*n + 1443*n - 11060 for n.

Answer: -20

Question: What is the solution?

Solve 96*s - 66*s - 378 = 57*s for s.

Answer: -14

Question: What is the solution?

Solve 284*o + 2229 = 37*o - 918 - 4263 for o.

Answer:
-30