Решите уравнение: (6/35-x)+8/35=12/35.

\[\left( \frac{6}{35} - x \right) + \frac{8}{35} = \frac{12}{35}\]

\[\frac{6}{35} - x = \frac{12}{35} - \frac{8}{35}\]

\[x = \frac{6}{35} - \frac{4}{35}\]

\[x = \frac{2}{35}.\]