Question

1челая5/14x-5/28x=23целая4/7​

Answer 1

Ответ:

$1 \frac{5}{14} x - \frac{5}{28} x = 23 \frac{4}{7} \\ \frac{19}{14} x - \frac{5}{28} x = \frac{165}{7} \\ 2 \times 19x - 5x = 165 \times 4 \\ 33x = 660 \\ x = 20$