Question

2/3-(2/9+х)=1/3
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Answer 1

Ответ:

$\frac{2}{3} - ( \frac{2}{9} + x) = \frac{1}{3} \\ \frac{2}{3} - \frac{2}{9} - x = \frac{1}{3} \\ \frac{4}{9} - x = \frac{1}{3} \\ - x = \frac{1}{3} - \frac{4}{9} \\ - x = - \frac{1}{9} \\ x = \frac{1}{9}$