## Algebra 1

$y=\frac{4+x}{2}$
We are trying to isolate $y$ in the equation $2y-x=4$ To do so, first, we must add $x$ to both sides: $2y=4+x$ Then, we divide by $2$ on each side of the equation to isolate $y$: $y=\frac{4+x}{2}$