Write down the solution for this math problem: Solve -8880*x = -815*x - 862955 for x.
answer: 107

Write down the solution for this math problem: Solve 3149 = 72*u + 2285 for u.
answer: 12

Write down the solution for this math problem: Solve 14*p = -1800 + 1632 for p.
answer: -12

Write down the solution for this math problem: Solve 6568 = -580*s - 3570 - 7842 for s.
answer:
-31