Question

4. Po3B'Aku piBHAHHA: a) 6) x - 15/23 = 21/23 3/7 + x = 5/7

Answer 1

Пошаговое объяснение:

$x - \frac{15}{23} = \frac{21}{23} \\ x = \frac{21}{23} + \frac{15}{23} \\ x = \frac{36}{23}$

$\frac{3}{7} + x = \frac{5}{7} \\ x = \frac{5}{7} - \frac{3}{7} \\ x = \frac{2}{7}$