solve for x! please help will mark brainiest!

Answer:
x= 15
Step-by-step explanation:
165 and x from a straight line so they are supplementary. They add to 180 degrees
165+x = 180
Subtract 165 from each side
165+x-165= 180-165
x = 15
the answer is 15 cause when u add 165 +165 = 330 .and then u substrate (360 - 330= 30) then u divide it by 2 =15 thats how u get it ..hope u can understand