Write down the solution for this math problem: Solve 8*v = -372 + 396 for v.
answer: 3

Write down the solution for this math problem: Solve -1966*s - 135685 = -123*s - 28900 + 108846 for s.
answer: -117

Write down the solution for this math problem: Solve 63*r + 58 - 20 + 466 = 0 for r.
answer: -8

Write down the solution for this math problem: Solve 0 = -28*k - 43456 + 43904 for k.
answer:
16