Tìm x biết rằng \(\begin{array}{l} \frac{{|x|}}{{12}} - \frac{1}{6} = \frac{{ - 2}}{3} \cdot \frac{1}{8} \end{array}\)

* Hướng dẫn giải

 \(\begin{array}{l} \frac{{|x|}}{{12}} - \frac{1}{6} = \frac{{ - 2}}{3} \cdot \frac{1}{8}\\ \frac{{|x|}}{{12}} - \frac{1}{6} = \frac{{ - 1}}{{12}}\\ \frac{{|x|}}{{12}} = \frac{{ - 1}}{{12}} + \frac{1}{6}\\ \frac{{|x|}}{{12}} = \frac{1}{{12}}\\ \Rightarrow |x| = 1\\ x = 1\,\,hay\,\,x = - 1. \end{array}\)