Write down the solution for this math problem: Solve 30*i + 24 = 24*i for i.
answer: -4

Write down the solution for this math problem: Solve -33*v - 202*v - 168*v = 22971 for v.
answer: -57

Write down the solution for this math problem: Solve 1 = -5*k + 36 for k.
answer: 7

Write down the solution for this math problem: Solve 397*b - 15700 = 117*b - 348*b for b.
answer:
25