-0,6.x - $\frac{7}{3}$ = 5,4
$\frac{-3}{5}$.x - $\frac{7}{3}$ = $\frac{27}{5}$
$\frac{-3}{5}$.x = $\frac{116}{15}$
x = $\frac{-116}{9}$
Vậy x = $\frac{-116}{9}$
2,8 : ($\frac{1}{5}$ - 3.x)=1$\frac{2}{5}$
$\frac{14}{5}$ : $\frac{1}{5}$ - 3.x = $\frac{7}{5}$
$\frac{1}{5}$ - 3.x = 2
3x = $\frac{-3}{5}$
x = $\frac{-1}{5}$
Vậy x = $\frac{-1}{5}$