Tìm x biết \(x + \frac{1}{{14}} = \frac{5}{7}\)

A

- Hướng dẫn giải

\(\begin{array}{l}
x + \frac{1}{{14}} = \frac{5}{7}\\
x = \frac{5}{7} - \frac{1}{{14}}\\
x = \frac{{10}}{{14}} - \frac{1}{{14}}\\
x = \frac{9}{{14}}
\end{array}\)