Question: What is the solution?

Solve 439 = 171*u - 3352 - 484 for u.

Answer: 25

Question: What is the solution?

Solve 259*o - 4533*o = -14178 + 65466 for o.

Answer: -12

Question: What is the solution?

Solve 22558*q - 945 = 11281*q + 11286*q for q.

Answer: -105

Question: What is the solution?

Solve -161*v + 170*v + 81 = 0 for v.

Answer:
-9