Answer
No
Work Step by Step
According to the Vertical Line Test, a curve in the $xy$-plane is a graph of a function of $x$ if no vertical line intersects the graph more than once.
Therefore we graph the given equation $2x−∣y∣=0$ to check if it passes the Vertical Line Test.
We find a vertical line ($x=20$) that intersects the graph more than once, in the picture below. This means that the given equation does not define $y$ as a function of $x$.
