Given the augmented matrix \[ A=\left[\begin{array}{rrr|r} 1 & 3 & -2 & -1 \\ 3 & 10 & -6 & 2 \\ -3 & -11 & 3 & -1 \end{array}\right] \] perform each row operation in the order specified and enter the final result. First:R2​−4R1​→R2​ Second:R3​+3R1​→R3​. Third:R3​+3R2​→R3​