@leafeon ok so i took a lil while to think about this:
x = the item cost
x = 1 + (x/2)
We can also restate this a lil more simply as:
x = 2x - 2
At any rate, if we try graphing either by plugging in a series of numbers as x, we can see that only one number creates a true statement: 2
Thus, we can conclude that the only possible cost of the item is $2.