Tìm x biết: |x:(-5/6)-3/4|=2

* Hướng dẫn giải

$\left|\frac{3}{8}-x\right|+\frac{5}{6}=\frac{7}{4}\iff \left|\frac{3}{8}-x\right|=\frac{11}{12}\iff \left[\begin{array}{l}\frac{3}{8}-x=-\frac{11}{12}\\ \frac{3}{8}-x=\frac{11}{12}\end{array}\right.\iff \left[\begin{array}{l}x=\frac{31}{24}\\ x=-\frac{13}{24}\end{array}\right.$