Write down the solution for this math problem: Solve 12*z + 8 = 16*z for z.
answer: 2

Write down the solution for this math problem: Solve -1903*q + 495*q = -29568 for q.
answer: 21

Write down the solution for this math problem: Solve -268 + 614 = 2576*k + 1130 + 1792 for k.
answer: -1

Write down the solution for this math problem: Solve -42 = -9*n - 51 for n.
answer:
-1