Question

Помогите, я не много не понял

Answer 1

$\frac{17}{23} - x = \frac{5}{23} + \frac{5}{23}\\\frac{17}{23} - x = \frac{10}{23}\\x = \frac{17}{23} - \frac{10}{23}\\x = \frac{7}{23}\\\text{OTBET}: \frac{7}{23}$