Write down the solution for this math problem: Solve 21*v + 580 = -9*v + 59*v for v.
answer: 20

Write down the solution for this math problem: Solve -9268 + 4474 = 882*n + 19031 + 22039 for n.
answer: -52

Write down the solution for this math problem: Solve 125*w - 77*w + 69 = 71*w for w.
answer: 3

Write down the solution for this math problem: Solve -71*w = -99*w + 102 + 150 for w.
answer:
9