Answer:
x = 12
Step-by-step explanation:
65 + 11x - 17 = 180 degree (being co exterior angles)
48 + 11x = 180
11x = 180 - 48
11x = 132
x = 132/11
65+11x-17 =180
11x+48 =180
11x. =180-48
11x. =132
x =12
