Answer: x=2
Explanation:
From the given picture, it can be seen that BE is parallel to CD in triangle ACD.
The basic proportionality theorem says that if a line(BE) is parallel to a side(CD) of a triangle(ACD) which intersects the other two sides (AC and AD) into two distinct points (B and E), then the line divides those sides in proportion.
Thus, we have


Hence, the value of x= 2