STEP - BY - STEP EXPLANATION
What to find?
The value of x.
Given:
Step 1
Recall the exterior angle theorem.
The exterior angle is equal to the sum of the two opposite interior angle.
Step 2
Use the theorem above to solve for the value of x.
That is;
[tex]\begin{gathered} x=47+39 \\ \\ x=86^\degree \end{gathered}[/tex]
ANSWER
86 degree
