$\"\"$ $\"\"$ $\"\"$

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The equations are .

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$\"\"$ Equation (1)

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$\"\"$ Equation (2)

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Solve the second equation $\"\"$ for y. $\"\"$

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According to subtraction property of equality: Subtract 2x from each side.

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$\"\"$

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$\"\"$ (Apply commutative property of addition: $\"\"$ )

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

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

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

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$\"\"$

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$\"\"$ (Apply distributive property: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Apply commutative property of addition: $\"\"$ ) $\"\"$ (Add: $\"\"$ ) $\"\"$

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According to addition property of equality: Add 208 to each side.

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$\"\"$

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

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

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$\"\"$ (Add: $\"\"$ ) $\"\"$

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According to division property of equality: If $\"\"$ then $\"\"$ .

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$\"\"$ (Divide each side by 4.5)

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$\"\"$ (Cancel common terms)

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

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

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$\"\"$

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$\"\"$ (Multiply: $\"\"$ )

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

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The solution is $\"\"$ .