Y = 1 - 2x / x(2x - 1)

To simplify this expression, we first need to factor out the x in the denominator:

Y = 1 - 2x / x(2x - 1)
Y = 1 - 2 / (2x - 1)

Next, we can simplify further by multiplying the numerator and denominator by x to get rid of the fraction in the denominator:

Y = 1 - 2 / (2x - 1)
Y = 1 - 2x / (2x - 1)
Y = (2x - 2x) / (2x - 1)
Y = 0 / (2x - 1)
Y = 0

Therefore, the simplified expression is Y = 0.