Write down the solution for this math problem: Solve 0 = 500*z - 258*z + 4598 for z.
answer: -19

Write down the solution for this math problem: Solve -396*a + 47*a = 13*a + 16652 for a.
answer: -46

Write down the solution for this math problem: Solve 8*k + 43*k - 612 = 0 for k.
answer: 12

Write down the solution for this math problem: Solve -23 = -68*y - 56 - 171 for y.
answer:
-3