Write down the solution for this math problem: Solve 459*l + 204*l = -18564 for l.
answer: -28

Write down the solution for this math problem: Solve 643 + 527 = -9*t + 1440 for t.
answer: 30

Write down the solution for this math problem: Solve -2*z - 2*z = -z for z.
answer: 0

Write down the solution for this math problem: Solve -4*h + 0*h = 0 for h.
answer:
0