Tìm x biết \( - \frac{{25}}{{56}} + x =  - \frac{{29}}{{24}}\)

* Hướng dẫn giải

\(\begin{array}{l}
 - \frac{{25}}{{56}} + x =  - \frac{{29}}{{24}}\\
x =  - \frac{{29}}{{24}} + \frac{{25}}{{56}}\\
x = \frac{{ - 1624}}{{1344}} + \frac{{600}}{{1344}}\\
x =  - \frac{{1024}}{{1344}} =  - \frac{{16}}{{21}}
\end{array}\)