The following system of equations is represented by the matrix equation $\text{A}\left[\begin{array} {ccc}
x \\
y \\
z \end{array} \right]=\vec{b}$.
>$\begin{align}10x+13y+15z&=4
\\12x-2y+5z&=-8
\\2x+2y-6z&=4\end{align}$
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[[☃ matrix 1]] | [[☃ matrix 2]]
*Represent each row and column in the order in which the variables and equations appear.*