Question

Write an equation for the value of y in terms of x. Then solve the equation for x.

I don't know what to do when there are 2 missing variables

Answer 1

since the triangle has 2 points that are equal x=40 but I'm not sure about y

Answer 2

hey I’m pretty sure y is 80 and x is 40, sorry if im wrong

but the two angles on the bottom are equal and all three angles in the triangle add up to 180 so if you subtract 40+40 because of the x and 40 then you will have y being 80