Question

у+2/7=1/3
Срочно!!!!!!!​

Answer 1

$y + \frac{2}{7} = \frac{1}{3} \\ y + \frac{6}{21} = \frac{7}{21} \\ y = \frac{7}{21} - \frac{6}{21} \\ y = \frac{1}{21}$