Jok time So a guy ask the librarian for a book on how to ki11 your self. the librarian said no
the man asked why?
The librarian said:
Because you wont bring it back.

answer: 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.