Verified answer

Ответ:

[tex]x = \frac{29}{6} [/tex]

Пошаговое объяснение:

[tex]3.5 + x = 8 \frac{1}{3} [/tex]

[tex]3.5 + x = \frac{25}{3} [/tex]

[tex]x = \frac{25}{3} - 3.5[/tex]

[tex]x = \frac{25}{3} - \frac{7}{2} [/tex]

[tex]x = \frac{29}{6} [/tex]

_______________________________

[tex]3.5 + \frac{29}{6} = 8\frac{1}{3} [/tex]

[tex]8 \frac{1}{3} = 8\frac{1}{3} [/tex]