Write down the solution for this math problem: Solve 231 = 9*p + 267 for p.
answer: -4

Write down the solution for this math problem: Solve 0 = 10*a + 15 + 55 for a.
answer: -7

Write down the solution for this math problem: Solve 123*f = 452 - 83 for f.
answer: 3

Write down the solution for this math problem: Solve -42*c = -44 - 292 for c.
answer:
8