I need the answer to x. The picture didnt load last time-

Answer:
x = 20º
Step-by-step explanation:
7x + x + 20 = 180
8x + 20 = 180
8x = 180 - 20
8x = 160
x = 160 / 8
x = 20
Hope that helps!
Answer:
X=20
Step-by-step explanation:
When you add 7x and the x+20, they total to 180 degrees to form a flat angle so to solves this use equation 7x+x+20=180 to get x=20.
To check: input the 20 into both equations and see if they add up to 180 degrees
7x20=140
20+20= 40
140+40= 180