Answer
X=16
Y=13
Step-by-step explanation
The opposites sides of a parallelogram are equal
7x-8=6x+8
7x-6x=8+8
X=16
The opposites angles of a parallelogram are equal
Then the sum of all the inside angles is equal to 360, and you have two of the inside angles
2(8y-4)+2(6y+2)=360
16y-8+12y+4=360
16y+12y=360+8-4
28y=364
Y= 364/28
Y= 13