Quadrilateral with given angles 
We are looking for angles x and y.
I have found the values of the following angles:
BEA = 74,
BDA = 64,
ACD = 68,
ECD = 112,
plus the relationship $x+y = 68$.
All other angles equations, from triangles or the sum of angles in the quadrilateral (360) end up in the same equation!
I have found through Geogebra that $x=18$ and $y=50$ but I can't figure out a second relationship to determine them geometrically!
Does anyone have any ideas?
Thank you!

Sinx / Sin(x + 64) = Sin38 / Sin84 *Sin22 / Sin48
Multiply both denom and nom by 4Sin82
Sinx /Sin(x + 64) = 4Sin22Sin38Sin82 / (Cos6Sin48Sin82)
(4Sin22Sin38Sin82 = Sin66 REPLACEMENT)
Sinx / Sin(x + 64) = Cos24 / (4Sin48Cos6Sin82)
Sinx / Sin(x + 64) = 1 / (8Sin24Cos6Sin82)
(2Sin24*Cos6 = Sin54 REPLACRMENT)
Sinx / Sin(x + 64) = 1 / (4Sin54*Sin82)
(1/4Sin54 = Sin18 REPLACEMENT)
Sinx / Sin(x + 64) = Sin18 / Sin82
X = 18
Y = 50
