Write down the solution for this math problem: Solve -8*z - 21 = -69 for z.
answer: 6

Write down the solution for this math problem: Solve -626*y - 12405 - 8314 - 12459 = 0 for y.
answer: -53

Write down the solution for this math problem: Solve 0 = -37*f - 2*f + 623 - 545 for f.
answer: 2

Write down the solution for this math problem: Solve -6*v - 231 = 35*v - 8*v for v.
answer:
-7