Write down the solution for this math problem: Solve 18*x + 3835 - 3565 = 0 for x.
answer: -15

Write down the solution for this math problem: Solve -219*s + 233*s + 80 + 4 = 0 for s.
answer: -6

Write down the solution for this math problem: Solve -22596*l + 22573*l = -138 for l.
answer: 6

Write down the solution for this math problem: Solve 310 = -41*d - 316 + 585 for d.
answer:
-1