Write the system first as a vector equation and then as a matrix equation. 6 x_{1}+x_{2}-3 x_{3}=10 8 x_{2}+2 x_{3}=0 Write the system as a vector equation where the first

equation of the system corresponds to the first row. Select the correct choice below and fill in any answer boxes to complete your choice. \begin{array}{l} \text { O. }\left[\left[\begin{array}{lll} x_{1} & x_{2} & x_{3} \end{array}\right]=\square\right. \\ \text { B. }\left[\begin{array}{l} x_{1} \\ x_{2} \\ x_{3} \end{array}\right]=\square \\ \text { 0 c. } x_{1} \square+x_{2} \square+x_{3} \square= \end{array}