(Solved): Consider the following linear system written in augmented form: \[ \left[\begin{array}{rrr|rr} 7 & ...

Consider the following linear system written in augmented form: \[ \left[\begin{array}{rrr|rr} 7 & -6 & -4 & -8 & 7 \\ 3 & -6 & 4 & 8 & 9 \\ 1 & 3 & 7 & -8 & 1 \end{array}\right] \] Solve the system using Gaussian elimination (without partial pivoting). Enter your answers in the input boxes below. Use exact values, not decimal numbers. For example if the value is \( 1 / 2 \) then enter \( 1 / 2 . \) \[ \begin{array}{ll} x_{1,1}= & x_{2,1}= \\ x_{1,2}= & x_{2,2}= \\ x_{1,3}= & x_{2,3}=\text { Skipped } \end{array} \]