According to the given data we can assume that that WXY is a triangle, then:
m∠W + m∠X + m∠Y = 180°
Therefore, 3y-5 + y+ 8+y=180
3y+y+y=180+5-8
5y=177
y=35
So, measure of each angle would be:
m∠W=3y-5=3(35)-5=102
m∠X=35+8=43
m∠Y=35