Respuesta :

If we assume that BC is bisecting AD, and that AE is half of AD, we can set up the equation:

[tex]2(19)=5x-7[/tex]

Then we can solve directly for x:

[tex]38=5x-7[/tex]
[tex]45=5x[/tex]
[tex]x=9[/tex]

So we have then calculated x which is equal to 9.