If 2x and 120? are the pair of co-interior angle find the value

2x + 120 = 180 (being co interior angle)

or, 2x = 180 - 120

or, 2x = 60

or, x = 60/2

or, x = 30

therefore 2x = 2* x = 2* 30= 60

answer is : muchas/tipicas

have a nice day!

~recklesschicken