Tìm x: -x - $\frac{1}{9}$ = $\frac{-2}{45}$ |x + $\frac{5}{6}$| = $\frac{11}{24}$ giúp mình nhé

Đáp án:

$\text{ a) - x - $\frac{1}{9}$ = $\frac{-2}{45}$}$

$\text{ - x = $\frac{-2}{45}$ + $\frac{1}{9}$}$

$\text{ - x = $\frac{1}{15}$}$

$\text{ x = - $\frac{1}{15}$}$

$\text{ b) | x + $\frac{5}{6}$ | = $\frac{11}{24}$ }$

$\text{ ta suy ra 2 trường hợp:}$

$\text{ x + $\frac{5}{6}$ = $\frac{11}{24}$ hay x + $\frac{5}{6}$ = $\frac{-11}{24}$}$

$\text{ x = $\frac{11}{24}$ - $\frac{5}{6}$ hay x = $\frac{-11}{24}$ - $\frac{5}{6}$ }$

$\text{ x = $\frac{-3}{8}$ hay x = $\frac{-31}{24}$ }$