Tìm x , biết: e) − 5/6 − x = 7/12 + − 1/3

e) \[\frac{{ - 5}}{6} - x = \frac{7}{{12}} + \frac{{ - 1}}{3}\]

\[\frac{{ - 5}}{6} - x = \frac{7}{{12}} + \frac{{ - 4}}{{12}}\]

\[\frac{{ - 5}}{6} - x = \frac{3}{{12}}\]

\[x = \frac{{ - 5}}{6} - \frac{3}{{12}}\]

\[x = \frac{{ - 10}}{{12}} - \frac{3}{{12}}\]

\[x = \frac{{ - 13}}{{12}}\].   

Vậy \[x = \frac{{ - 13}}{{12}}.\]