Question

решите уравнение
$5x - x = - \frac{ - x - 5 }{x + 5}$

Answer 1

$\displaystyle 5-x=- \frac{-x-5}{x+5}~~~\Rightarrow~~~ 5-x= \frac{x+5}{x+5} \\ \\ 5-x=1\\ \\ x=4$