Consider a system of equations representing the number of apples and oranges a vendor sells. The equations are given by:
$$2x + 3y = 30$$
and
$$4x - y = 10$$
where $x$ represents the number of apples sold and $y$ represents the number of oranges sold. Determine the value of $y$ when this system of equations is solved. Enter your answer as a decimal number in the grid below.