Write down the solution for this math problem: Solve 0 = 29*k + 19*k + 384 for k.
answer: -8

Write down the solution for this math problem: Solve 125*c + 14 + 254 = -357 for c.
answer: -5

Write down the solution for this math problem: Solve -21*s + 5*s + 80 = 0 for s.
answer: 5

Write down the solution for this math problem: Solve -18*t - 52 = -5*t for t.
answer:
-4