$\"\"$

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The system of equations are $\"\"$ .

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$\"\"$ ------------------> (1)

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$\"\"$ ------------> (2)

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$\"\"$ -------------> (3)

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Use elimination to make a system of two equations in two variables.

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Multiply equation (1) by 4.

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$\"\"$ ------------------> (4)

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Multiply equation (2) by 2.

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$\"\"$ ------------------> (5) \ \

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Subtract equations (4) from (5).

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$\"\"$

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$\"\"$ --------------> (6) $\"\"$

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Multiply equation (3) by 4.

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$\"\"$

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$\"\"$ -----------------> (7)

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Addition equations (7) and (2).

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$\"\"$

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$\"\"$

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$\"\"$

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Multiply each side by negative $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ \ \

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Substitute $\"\"$ value in equation (6).

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$\"\"$

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$\"\"$

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Add 126 to each side.

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$\"\"$

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$\"\"$

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$\"\"$

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Divide each side by 10.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ and $\"\"$ value in equation (1).

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$\"\"$

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$\"\"$

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$\"\"$

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Subtract 3 from each side.

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$\"\"$

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$\"\"$

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$\"\"$

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Divide each side by 2.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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The values are $\"\"$ .