Write down the solution for this math problem: Solve -475*u - 1591 = 444*u - 10781 for u.
answer: 10

Write down the solution for this math problem: Solve -47 = -8*i - 87 for i.
answer: -5

Write down the solution for this math problem: Solve 798*i = -1399*i - 334*i - 15186 for i.
answer: -6

Write down the solution for this math problem: Solve 421 - 154 = 24*y + 3 for y.
answer:
11