Raspuns:
[tex]x + \frac{1}{5} (x - 2) - 1 = 0.2[/tex]
[tex]x + \frac{1}{5} x - \frac{2}{5} - 1 = \frac{1}{5} [/tex]
[tex]x + \frac{1}{5} x - \frac{7}{5} = \frac{1}{5} [/tex]
[tex]5x + x - 7 = 1[/tex]
[tex]6x - 7 = 1[/tex]
[tex]6x = 1 + 7[/tex]
[tex]6x = 8[/tex]
[tex]x = \frac{4}{3} [/tex]
Explicație pas cu pas: