Help Please! I need to find the value of x in the quadrilateral
I know the sum of the exterior angles and interior angles is 360 and I know I need to do something with substitution but I have no idea where to start. Please explain it step by step so I understand.

Help Please I need to find the value of x in the quadrilateral I know the sum of the exterior angles and interior angles is 360 and I know I need to do somethin class=