Answer
$\dfrac{17}{4}$
Work Step by Step
Using the given values of the variables ($x=-2,$ $y=0,$ and $z=3$), the given expression, $
\dfrac{3z-4x+y}{x+2z}
,$ evaluates to
\begin{array}{l}\require{cancel}
\dfrac{3(3)-4(-2)+0}{-2+2(3)}
\\\\=
\dfrac{9+8+0}{-2+6}
\\\\=
\dfrac{17}{4}
.\end{array}