Tìm ẩn x biết ​\(\begin{array}{l} \frac{4}{9} - \left( {\frac{{ - 3}}{2}} \right) = \frac{3}{8} + x \end{array}\)

* Hướng dẫn giải

 \(\begin{array}{l} \frac{4}{9} - \left( {\frac{{ - 3}}{2}} \right) = \frac{3}{8} + x\\ x = \frac{4}{9} + \frac{3}{2} - \frac{3}{8}\\ x = \frac{{32}}{{72}} + \frac{{108}}{{72}} - \frac{{27}}{{72}}\\ x = \frac{{113}}{{72}} \end{array}\)