Question

2/8x -1/18x +1/2x =2 2/9

Answer 1

Ответ:

$\frac{2}{8} x - \frac{1}{18}x + \frac{1}{2} x = 2\frac{2}{9}\\ \frac{1}{4} x - \frac{1}{18}x + \frac{1}{2}x = \frac{20}{9} \\ \frac{1}{4}x+ \frac{2}{4}x - \frac{1}{18} x = \frac{20}{9} \\\frac{3}{4}x - \frac{1}{18}x = \frac{20}{9}\\ \frac{27}{36}x - \frac{2}{36}x = \frac{20}{9} \\ \frac{25}{36} x = \frac{20}{9} \\ x = \frac{20*36}{25*9} = \frac{4*4}{5} = \frac{16}{5} = 3\frac{1}{5}$