What is the value of x? enter your answer in the box. x =

this problem has only trivial solutions, with all points on the same line. x=5 or x=7/5.

Step-by-step explanation:

There are three triangles, and three unknowns: x, y=length of middle segment, and z=cos(angles marked with red arc).

We need

and law of cosines,

The three equations are

See attached image for solution.

if you was gonna solve for a, a is a   < -12