2. Use the matrix inverse method to solve the following system of equations. (10%) \[ \begin{aligned} x_1 + 3x_2 - 2x_3 &= 1 \\ 2x_1 + 5x_2 - 3x_3 &= 5 \\ -3x_1 + 2x_2 - 4x_3 &= 7 \end{aligned} \]
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2. Use the matrix inverse method to solve the following system of equations. (10%) \[ \begin{aligned} x_1 + 3x_2 - 2x_3 &= 1 \\ 2x_1 + 5x_2 - 3x_3 &= 5 \\ -3x_1 + 2x_2 - 4x_3 &= 7 \end{aligned} \]