Question

2/7 х - 1/2 равно 3/4 плюс 5/14

Answer 1

$\frac{2}{7} x - \frac{1}{2} = \frac{3}{4} + \frac{5}{14}$

$\frac{2}{7} x = \frac{3}{4} + \frac{5}{14} + \frac{1}{2}$

$\frac{2}{7} x = \frac{21}{28} + \frac{10}{28} + \frac{14}{28}$

$\frac{2}{7} x = \frac{45}{28}$

$x = \frac{45}{28} \div \frac{2}{7}$

$x = \frac{45}{28} \times \frac{7}{2}$

$x = \frac{45}{4}$

$x = 11.25$