Write down the solution for this math problem: Solve 459*d + 8667 + 7841 + 5983 = 0 for d.
answer: -49

Write down the solution for this math problem: Solve 8*i + 18 = 10 for i.
answer: -1

Write down the solution for this math problem: Solve -3494*x = -3431*x - 1764 for x.
answer: 28

Write down the solution for this math problem: Solve 61*x - 39*x - 22 = 0 for x.
answer:
1