:( help.... :(

$\begin{pmatrix} 4&2&|&23\\ -1&3&|&4\\ \end{pmatrix}\\\sim\begin{pmatrix} 0&14&|&39\\ -1&3&|&4\\ \end{pmatrix}\\ y = \dfrac{39}{14}\\ -x + 3\left(\dfrac{39}{14}\right) = 4\\ x = \dfrac{61}{14}$