by tommywallach Thu Sep 26, 2013 3:31 pm
Hey Pam,
Well, do you understand the relationship between x and y (i.e. x + y = 180)? This is because angle x has to be the same as the angle just above where the y is (because a transverse meets parallel lines at the same angle). And obviously, that angle (the one just above y) plus y has to equal 180, because it's a line.
From there, everything spools out pretty easily.
First, simplify the equation they gave you:
x/(x-y) = 2
x = 2x - 2y
2y = x
Then plug into the other equation:
x + y = 180
2y + y = 180
y = 60
so x = 120
Make more sense?
-t