Write down the solution for this math problem: Solve -1910*z + 1904*z - 54 = 0 for z.
answer: -9

Write down the solution for this math problem: Solve -2387 = -314*n - n - 43*n + 7995 for n.
answer: 29

Write down the solution for this math problem: Solve 5*j - 4 = 9*j for j.
answer: -1

Write down the solution for this math problem: Solve -8 = -2*d - 14 for d.
answer:
-3