Answer:
This is a same side interior angle. I just learned this in class so don't blame me if your wrong, ur taking advice from a 4th grader dude.
Answer is: x
read the explanation lol
Explanation:
So we know angle 3 and 4 is=180
7 and 8 =180
but 4 and 7 ALSO add up to 180, I think you can do this now. It's mental math.
Hint: 125+x=180