Determine the value of x in the diagram. (I really need an answer ASAP)

Answer:
x = 20
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
sum the exterior angles and equate to 360
3x + 3x + 6x + 6x = 360 , that is
18x = 360 ( divide both sides by 18 )
x = 20