Respuesta :

All you need to do is cross multiply and then solve for x
[tex] \frac{8}{x+9} = \frac{2}{x-3} \\ 8(x-3)=2(x+9) \\ 8x-24=2x+18 \\ 6x-24=18 \\ 6x=42 \\ x=7[/tex]
See the attachment.
Ver imagen MS2001