Answer:
x=15
Step-by-step explanation:
well by angles in parallel lines
angle 1 is equal angle 2
so we have
[tex]7x=5x+30\\\\7x-5x=30\\\\2x=30\\\\x=15[/tex]
15
Since angles 1 and 2 are known as "alternate interior angles", they are equal to each other.
Since they are equal, we can set the equations equal to each other as well.
7x = 5x + 30
-5x -5x
2x = 30
x = 15
