Ayuda por favor gracias

[tex] \frac{6 + 2}{6 - 2} = \frac{8}{4} = 2 \\ [/tex]
[tex] \frac{8 + 6}{8 - 6} = \frac{14}{2} = 7 \\ [/tex]
[tex] \frac{9 + 6}{9 - 6} = \frac{15}{3} = 5 \\ [/tex]