Question

The image below shows two parallel lines cut by a transversal. What is the value of x + y?

Answer 1

the value of x + y = 180

Answer 2

Well, since you haven't given me the values for at least one of the variables, all i can tell you right now is that they both should equal to 180 degrees. Why? They are supplementary! And supplementary angles equal to 180 degrees. So x+y= 180.