Question

I Need some help understanding how to do this

Answer 1

x=56

Explanation:

because they are parallel lines, the angle 124 is the same measurement as the angle on the other side of the line with x. (look at the attachment, im bad at explaining with words lol)

then you do 180 - 124 (180 is the angle of a straight line) and you get x.

Answer 2

Explanation:

that's what I did ^^ (in photo)