Question: What is the solution?

Solve 1 = 6*v - 7*v for v.

Answer: -1

Question: What is the solution?

Solve -638 = -343*b - 7155 for b.

Answer: -19

Question: What is the solution?

Solve 0*b = 6*b - 24 for b.

Answer: 4

Question: What is the solution?

Solve 79*o = 82*o - 1 + 7 for o.

Answer:
-2