Answer:
X= 11
Y= 3
Unlabeled angle: 56
Step-by-step explanation:
I attached a photo with the angles labeled to help it make more sense :)
Set up an equation system to find x and Y: (<C+<D=180), (<C=<A)
<C and <D are supplementary so that's why they equal 180.
<B and <D are corresponding angles which are always equal. (<A and <C are also corresponding angles)
Anyways here's the equation:
(13x-19)+(17y+5)=180, (13x-19)=(9x+25)
Calculate and you'll get x=11 and y=3
To find angle B put 3 into equation D since they are equal.
17(3)+5=56
