Set up the correct equation and then solve for x.

please help me on this.

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

Ithink it is correct but just ask someone else but i am sure it it

It doesn’t show the question