4/9 - 1/6 ( x+3/8 ) = -1/3

Đáp án + Giải thích các bước giải:

$\dfrac{4}{9} - \dfrac{1}{6}\bigg(x + \dfrac{3}{8}\bigg) = -\dfrac{1}{3}$
$\dfrac{4}{9} - \dfrac{1}{6}\bigg(x + \dfrac{3}{8}\bigg) = -\dfrac{3}{9}$
$\dfrac{1}{6}\bigg(x + \dfrac{3}{8}\bigg) = \dfrac{4}{9} - \bigg(-\dfrac{3}{9}\bigg)$

$\dfrac{1}{6}\bigg(x + \dfrac{3}{8}\bigg) = \dfrac{7}{9}$

$x + \dfrac{3}{8} = \dfrac{7}{9} : \dfrac{1}{6} = \dfrac{7}{9} . 6$
$x + \dfrac{3}{8} = \dfrac{42}{9} = \dfrac{14}{3}$

$x = \dfrac{14}{3} - \dfrac{3}{8}$
$x = \dfrac{112}{24} - \dfrac{9}{24}$
$x = \dfrac{103}{24}$