Tìm \(x\) biết: \( - 3x + 10 = 1\)

* Hướng dẫn giải

\( - 3x + 10 = 1\)

\(\begin{array}{l} - 3x + 10 = 1\\\,\,\,\,\,\,\,\,\, - 3x =  - 9\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,x = \left( { - 9} \right):\left( { - 3} \right)\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,x = 3\end{array}\)

Vậy \(x = 3\)