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The equations are $\"\"$ and $\"\"$ .

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Convert the above equations into matrices form $\"\"$ ,

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where $\"\"$ is coefficient matrix, $\"\"$ is constant matrix and $\"\"$ is variable matrix.

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$\"\"$ .

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$\"\"$ .

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Multiply each side by $\"\"$ .

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$\"\"$

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$\"\"$ .

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Find $\"\"$ .

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Formula for the inverse matrix: $\"\"$ .

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Determinant of $\"\"$ is $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute the corresponding values in above formula.

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$\"\"$

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Find $\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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The solution is $\"\"$ .

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The solution is $\"\"$ .