Write down the solution for this math problem: Solve 0 = 9*u + 46*u - 495 for u.
answer: 9

Write down the solution for this math problem: Solve -92 + 162 + 212 = 141*z for z.
answer: 2

Write down the solution for this math problem: Solve -3*n + 563 = -2*n + 564 for n.
answer: -1

Write down the solution for this math problem: Solve -68*p + 170*p + 4290 = 180*p for p.
answer:
55