$\"\"$

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The system of equations are

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$\"\"$

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Write the equations into matrix form $\"\"$ , where $\"\"$ is coefficient matrix, $\"\"$ is variable matrix and $\"\"$ is constant matrix.

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$\"\"$

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Inverse of a $\"\"$ matrix: $\"\"$ .

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Here $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Multiply $\"\"$ by $\"\"$ to solve the system.

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$\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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The solutions of system of equation $\"\"$ and $\"\"$ .