\"\"\"\"\"\"

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The equations are

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\"\"                       (Equation 1)

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\"\"              (Equation 2)

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Since \"\",

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Rewrite the first equation for x.

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\"\"

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\"\"

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Apply division property of equality: Divide each side by 2.

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\"\"

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\"\"                      (Cancel common terms)

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\"\"                           (Divide: \"\")

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Now Substitute 6 for x in either equation to find the value of y.

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\"\"                 (Equation 2)

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\"\"                 (Replace x by 6)\"\"

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Apply subtraction property of equality: Subtract 6 from each side.

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\"\"

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Apply commutative property of addition: \"\".

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\"\"

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\"\"          (Apply additive inverse property: \"\")  

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\"\"             (Apply additive identity property: \"\")

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\"\"                   (Subtract: \"\")\"\"

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Apply division property of equality: Divide each side by 5.

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\"\"

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\"\"                   (Cancel common terms)

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\"\"                        (Divide: \"\")

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\"\"         (Multiply each side by negative one) 

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\"\"                               (Product of two same signs is positive)

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The solution is \"\"\"\"

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The solution is \"\".