Answer:
Explanation:
Using the side proportionality rule of triangles, we can see that the side with length 6 has a 
 ratio to the side with length 9. We can use the same principle to determine that the side length of 2 is two thirds to side length x. We can set up an algebraic equation to find the value of x: 
. If we multiply both sides by 3, we get 
, therefore x = 3