Question

HELP GEOMETRY find x and y

Answer 1

A well-known formula gives us that $y = \frac{6x-3x}{2} = \frac{3x}{2}$.  Additionally, the sum of the angles in a circle is 360, so $6x+3x=9x=360$, so $x=40^\circ$.  Therefore, $y = 60^\circ$.