Tìm x biết :|5/18-x|-7/24=0

* Hướng dẫn giải

$\left|\frac{5}{18}-x\right|-\frac{7}{24}=0\iff \left|\frac{5}{18}-x\right|=\frac{7}{24}\iff \left[\begin{array}{l}\frac{5}{18}-x=-\frac{7}{24}\\ \frac{5}{18}-x=\frac{7}{24}\end{array}\right.\iff \left[\begin{array}{l}x=\frac{41}{72}\\ x=-\frac{1}{72}\end{array}\right.$