Question: What is the solution?

Solve 0 = 130*z + 198 + 972 for z.

Answer: -9

Question: What is the solution?

Solve 104*v - 18 = -226 for v.

Answer: -2

Question: What is the solution?

Solve -177*q = 217*q - 10134 + 2254 for q.

Answer: 20

Question: What is the solution?

Solve 0 = 3*o + 564 - 576 for o.

Answer:
4