Answer:
x = 5 units.
Step-by-step explanation:
In a parallelogram. diagonals bisect each other.
This means [tex]$ \overline{CE} = \overline{BE} $[/tex]
[tex]$ \implies 15 - x = 2x $[/tex]
[tex]$ \implies 15 = 3x $[/tex]
[tex]$ \implies x = 5 $[/tex]
Therefore, the length of x = 5 units.
