-4$\frac{3}{5}$ . 2$\frac{4}{23}$ ≤ x ≤ -2$\frac{3}{5}$ . 1$\frac{6}{15}$
$\frac{-23}{5}$ . $\frac{50}{23}$ ≤ x ≤ $\frac{-13}{5}$ . $\frac{7}{5}$
-10 ≤ x ≤ $\frac{-91}{25}$
$\frac{-250}{25}$ ≤ x ≤ $\frac{-91}{25}$
=> x ∈ { $\frac{-91}{25}$ ; ... ; $\frac{-250}{25}$ }
Xin hay nhất ạ ;)