Question

2 1/3:(4/7x+2/9)=1 1/6 помогите

Answer 1

2 $\frac{1}{3}$ : ($\frac{4}{7}$х + $\frac{2}{9}$) = 1 $\frac{1}{6}$ 
$\frac{4}{7}$х + $\frac{2}{9}$ = 2 $\frac{1}{3}$ : 1 $\frac{1}{6}$ 
$\frac{4}{7}$х + $\frac{2}{9}$ = $\frac{7}{3}$ : $\frac{7}{6}$
$\frac{4}{7}$х + $\frac{2}{9}$ = $\frac{7}{3}$ * $\frac{6}{7}$
$\frac{4}{7}$х + $\frac{2}{9}$ = 2
$\frac{4}{7}$х  = 2 - $\frac{2}{9}$ 
$\frac{4}{7}$х  = 1 $\frac{7}{9}$
х = 1 $\frac{7}{9}$ : $\frac{4}{7}$ 
х = $\frac{16}{9}$ : $\frac{4}{7}$ 
х = $\frac{16}{9}$ * $\frac{7}{4}$
х = $\frac{28}{9}$
х = 3 $\frac{1}{9}$
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