Tìm x biết ​\(\frac{{ - 2}}{4} + \frac{5}{6}x = \frac{{ - 4}}{{15}}\)

* Hướng dẫn giải

 \(\begin{aligned} &\frac{{ - 2}}{4} + \frac{5}{6}x = \frac{{ - 4}}{{15}}\\ &\frac{5}{6}x = \frac{{ - 4}}{{15}} - \frac{{ - 2}}{4}\\ &\frac{5}{6}x = \frac{7}{{30}}\\ &x = \frac{7}{{30}}:\frac{5}{6}\\ &x = \frac{7}{{25}} \end{aligned}\)