Answer:
x= 117°
Explanation:
In a Pentagon the interior angles are equal to 540° so, first we take the values we have which is:
140°+138°+59°+86°= 423° in total
To find x all you do is take 423 away from 540
540 - 423 = 117°
x= 117°
Hope it helped, ask any questions if you are unsure:)