I am pretty confused with this one. I know that the opposite angles of a parallelogram equal each other, so Angle C is (2y-5). Angle C+the exterior angle of it=180, right? I tried doing this:Angle A is (2y-5) and Angle D is (x+50). The exterior angle of Angle C is (3x+20). What is x and y?
I plugged in (180-x) into y when I wanted to solve for x.
I don't know how I ended up with a negative x value, and I know this won't work for the parallelogram angle. I think I did something wrong when I replaced the y with 180-x.