Write down the solution for this math problem: Solve 187 = 8*v + 203 for v.
answer: -2

Write down the solution for this math problem: Solve 0 = 4*b + 20 for b.
answer: -5

Write down the solution for this math problem: Solve 629252*r + 2368 = 629330*r - 1142 for r.
answer: 45

Write down the solution for this math problem: Solve 498*i + 6368 = -298*i for i.
answer:
-8