Question: What is the solution?

Solve -107*v = -109*v + 4 for v.

Answer: 2

Question: What is the solution?

Solve -405*r = -2893 - 3182 for r.

Answer: 15

Question: What is the solution?

Solve -184*b = -1372 - 1388 for b.

Answer: 15

Question: What is the solution?

Solve -5564 = 507*x + 2874 + 688 for x.

Answer:
-18