Respuesta :

mikaylarenee9
Answer: X= 21
Y= 39
Why?
(6x+15) = (7x-15) solve and get 21 then
7*21-15= 141 take 141 and subtract 180
180-141= 39

Hope this Helps :D
prettypony72

Answer:

x=21,y=159

Step-by-step explanation:

6x+15=7x-6 ( vertically opposite angles)

x=21°

21°+y = 180° (straight angle)