3/7 x x1/2 = 5 - 47 giải hộ mk nhed

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

$\frac{3}{7}×x×\frac{1}{2}=\frac{25}{35}-\frac{20}{35}$

$x×\frac{1}{2}=\frac{3}{7}×7$

$x×\frac{1}{2}=3$

$x=3×2$

$x=6$