If $A = \begin{bmatrix} 2 & -3 & 5 \\ 3 & 2 & -4 \\ 1 & 1 & -2 \end {bmatrix}$, find $A^{-1}$ . Using $A^{-1}$ , solve the system of equations : $2x – 3y + 5z = 11 ,3x + 2y – 4z = –5 ,x + y – 2x = –3.$

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