[tex]6 \frac{3}{19} - (x - \frac{6}{19} ) = 2 \frac{7}{19} \\ x - \frac{6}{19} =6 \frac{3}{19} - 2 \frac{7}{19} \\ x = 6 \frac{3}{19} + \frac{6}{19} - 2 \frac{7}{19} \\ x = 6 \frac{9}{19} - 2 \frac{7}{19} \\ x = 4 \frac{2}{19} [/tex]

Ответ:

4 2/19

Пошаговое объяснение:

6 3/19 - (х - 6/19) = 2 7/19

6 3/19 - х + 6/19 = 2 7/19

6 9/19 - х = 2 7/19

х = 6 9/19 - 2 7/19

х = 4 2/19