Tìm giá trị \(x\), biết: \(x - \dfrac{1}{2} = \dfrac{3}{4}\) 

* Hướng dẫn giải

\(\begin{array}{l}\,x - \dfrac{1}{2} = \dfrac{3}{4}\\\,\,\,\,\,x\,\,\,\,\,\,\,\,\,\, = \dfrac{3}{4} + \dfrac{1}{2}\\\,\,\,\,\,x\,\,\,\,\,\,\,\,\,\, = \dfrac{5}{4}\end{array}\)