(Solved): Consider the following linear system written in augmented form: \[ \left[\begin{array}{rrrr|r} -8 ...

Consider the following linear system written in augmented form: \[ \left[\begin{array}{rrrr|r} -8 & 6 & 3 & -2 & 7 \\ 7 & -8 & 2 & -7 & 7 \\ -8 & 5 & 2 & -1 & -2 \\ -5 & 0 & 6 & -1 & -9 \end{array}\right] \] 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 \( 1 / 2 . \) \[ \begin{array}{l} x_{1}= \\ x_{2}= \\ x_{3}= \\ x_{4}= \end{array} \]