Question: What is the solution?

Solve 1512 - 441 = 63*v for v.

Answer: 17

Question: What is the solution?

Solve 2672 - 26 = -258*b + 453 - 3225 for b.

Answer: -21

Question: What is the solution?

Solve 1522 = -665*x + 8172 for x.

Answer: 10

Question: What is the solution?

Solve 91*o + 9 = 94*o for o.

Answer:
3