Răspuns:
[tex] \frac{7}{5} - ( \frac{8 - 5x}{5} ) = \frac{2}{5} \\ \frac{7 - 8 + 5x}{5} = \frac{2}{5} \\ 5x - 1 = 2 \\ 5x = 3 \\ x = \frac{3}{5} [/tex]
