Question

447. Решите уравнения: 4)2/3-(2/9+x)=1/3​

Answer 1

Ответ:

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

$\frac{2}{3} - \frac{2}{9} - x = \frac{1}{3}$

$\frac{4}{9} - x = \frac{1}{3}$

$- x = \frac{1}{3} - \frac{4}{9}$

$- x = - \frac{1}{9}$

$x = \frac{1}{9}$