Answer:
y=8°
Step-by-step explanation:
[tex]\tt \angle ywx+\angle wxyz=\angle zyw[/tex]
[tex]\tt 4y-4+3y=52[/tex]
[tex]\tt 4y+3y-4=52[/tex]
[tex]\tt 7y-4=52[/tex]
[tex]\tt 7y-4+4=52+4[/tex]
[tex]\tt 7y=56[/tex]
[tex]\tt \cfrac{7y}{7}=\cfrac{56}{7}[/tex]
[tex]\tt y=8^{o}[/tex]
Hope it helps! :)
