Question: What is the solution?

Solve 0 = 4*v + 2 + 2 for v.

Answer: -1

Question: What is the solution?

Solve 601*n - 605*n = 24 for n.

Answer: -6

Question: What is the solution?

Solve -172*b + 231 = -151*b for b.

Answer: 11

Question: What is the solution?

Solve -602*i - 54 = -611*i for i.

Answer:
6