Răspuns:
[tex] \frac{2}{3} - x - \frac{1}{2} = 5 - 4 - \frac{x}{2} \\ \frac{4}{6} - x - \frac{3}{6} = 1 - \frac{x}{2} \\ [/tex]
[tex] \frac{1 - 6x}{6} = \frac{2 - x}{2} \\ \frac{1 - 6x}{6} = \frac{6 - 3x}{6} [/tex]
[tex]1 - 6x = 6 - 3x \\ 1 - 6 = 6x - 3x \\ - 5 = 3x[/tex]
[tex]x = - 5 \div 3 \\ x = - 1.(6)[/tex]
