Write down the solution for this math problem: Solve -4500*z = -4537*z + 37 for z.
answer: 1

Write down the solution for this math problem: Solve -669*z - 25960 - 11717 = -126*z + 26397 for z.
answer: -118

Write down the solution for this math problem: Solve -5 = 10*f - 9*f for f.
answer: -5

Write down the solution for this math problem: Solve 442*n - 1449*n - 1286*n - 89427 = 0 for n.
answer:
-39