Write down the solution for this math problem: Solve -477 = 66*h + 517 + 62 for h.
answer: -16

Write down the solution for this math problem: Solve -41*k + 61*k = 64*k + 792 for k.
answer: -18

Write down the solution for this math problem: Solve 0 = -12*z - 16*z + 84 for z.
answer: 3

Write down the solution for this math problem: Solve 381*c - 67*c = -1691 - 8043 for c.
answer:
-31