Answer: 
Step-by-step explanation:
According to the Side Splitter Theorem, when a line is parallel to a side of a triangle and it intersects the other two sides, these sides are divided proportionally.
Based on this, you can write the following proportion:

Observing the figure given in the exercise, you can identify that:

Finally, you must substitute values into
and solve for "x" in order to find its value. This is:
