Question

resolva x-2 sobre x+2 = 1 sobre 8

Answer 1

$\frac{x-2}{x+2}= \frac{1}{8}$

agora multiplica cruzando:

8(x-2)=1(x+2)
8x-16=x+2
8x-x=2+16
7x=18
$x= \frac{18}{7}$