<p>If&nbsp;<span class="equation">\(\begin{bmatrix} x+y &amp; x+2 \\ 2x-y&amp;16 \end{bmatrix} = \begin{bmatrix} 8 &amp; 5 \\ 1&amp;3y+1 \end{bmatrix}\)</span>&nbsp;, then write the value of(y - x)</p>