Respuesta :

Answer:4

Step-by-step explanation:

x+8=2x-1

so x-9=0

and x=9

so x+6=9+6=15

and x+8=9+8=17

You can do Pythagoras' theorem:

17^2-15^2=64

so [tex]\sqrt{64}[/tex]=4
Look at the person above me. There you will find your answer