Those are adjacent angles. They equal 180 degrees.
10x-20+6x+8= 180
16x-12=180
Add 12.
16x= 192
x=12
I hope this helps!
~kaikers
Answer:
Horizontal lines are parallel to the x-axis
The answer is the second option
Answer:
13
Step-by-step explanation:
substitute all the numbers in
6+3/6+3/6+6=13
The answer is 2 hopefully this helped