𝐚,
$x - \dfrac{1}{6} = \dfrac{1}{2} + \dfrac{1}{3}$
$x - \dfrac{1}{6} = \dfrac{3}{6} + \dfrac{2}{6}$
$x - \dfrac{1}{6} = \dfrac{5}{6}$
$x = \dfrac{1}{6} + \dfrac{5}{6}$
$x = 1$
𝐛,
$x + \dfrac{1}{8} = \dfrac{1}{2}$ - $\dfrac{1}{3}$
$x + \dfrac{1}{8} = \dfrac{3}{6}$ - $\dfrac{2}{6}$
$x + \dfrac{1}{8} = \dfrac{1}{6}$
$x = \dfrac{1}{6} - \dfrac{1}{8}$
$x = \dfrac{4}{24} - \dfrac{3}{24}$
$x = \dfrac{1}{24}$
Chúc bạn học tốt :)
