15. determine the values of the unknown variables

i really just need with how to find the x in the situation. i know how to go from there i'm just unsure how to find the x.

you!

For the left-hand triangle we know: .
Solving for we have:



So the angles on the left are: 47,31 and 102 degrees.

On the right we have
Substituting known values and solving we get:

[tex]y=72\°[/tex}
So the angles on the right are, 72, 61 and 47 degrees. 

Iam not sure , but probably 750 or 7.5