Answer: 
Step-by-step explanation:
An Angle Bisector is defined as a line segment which divides an angle into two equal parts.
According to the information given in the exercise, you know that the angle bisector BE divides the angle ABC into two equal parts. These are:

Based on the definition given above, you know that:

Then, you can write the following equation:

Now you can solve for "x":

Finally, you must substitute the value of "x" into
and then evaluate:
