$\"\"$

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The system of equations are $\"\"$

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

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$\"\"$ .

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$\"\"$ .

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Multiply each side by $\"\"$ .

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$\"\"$ .

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The value of $\"\"$ .

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$\"\"$ .

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Apply identity property of matrix: $\"\"$ .

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$\"\"$ .

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Find $\"\"$ .

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Dimension of $\"\"$ is $\"\"$ .

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Form the matrix $\"\"$ .

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Use row operations to transform $\"\"$ into reduced row echelon form. $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in equation $\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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

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The solution in ordered pair form is $\"\"$ .

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The solution in ordered pair form is $\"\"$ .