Answer:
x=30
Explanation:
you would call those alternate exterior angles meaning that they are the same angle, so all you have to do is reverse the equation meaning you do 75-15=60 and you would then divide by 2 to get X so 60/2=30, so x=30
x = 30
2x+15 should be vertical to angle 5
75 is vertical to angle 4.
If we were to look at angles 4 and 5 those are alternate interior which means they have to be congruent.
2x+15=75
2x=75-15
2x=60
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