## Algebra 1: Common Core (15th Edition)

We are asked to find the intersection of $X$, $Y$, and $Z$. This means we find all elements that are common to $X$, $Y$, and $Z$. $X$ and $Y$ only have $3$ in common. The common element in these two sets has nothing in common with $Z$; therefore, all three sets have nothing in common. There is no solution to this exercise.