Question

Ayudaa(no respondan si no saben)

Answer 1

Respuesta:

 $-\cfrac{~30~}{7}$

Explicación paso a paso:

$\boxed{x}=\cfrac{x+8}{5}-\cfrac{2x-5}{3}~~~~~~~~~\boxed{a}=\cfrac{3}{5}$

Resolviendo:

  $\cfrac{a+8}{5}-\cfrac{2a-5}{3}=\cfrac{3}{5}\\\\\\\cfrac{3(a+8)-5(2a-5)}{15}=\cfrac{3}{5}\\\\\\\cfrac{3a+24-10a+25}{15}=\cfrac{3}{5}\\\\\\49-7a=\cfrac{3}{5}*15\\\\49-7a=9\\\\-7a=9-49\\\\a=\cfrac{40}{7}$                                    

Hallando "a - 10":

  $a-10\\\\\cfrac{40}{7}-10\\\\\cfrac{40-70}{7}\\\\\\-\cfrac{30}{7}$