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

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The equation is $\"\"$

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Subtraction property of equality: if $\"\"$ , then $\"\"$ .

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. $\"\"$

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$\"\"$ (Apply Commutative proparty: $\"\"$

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$\"\"$ (Apply ApplyAdditive inverse proparty: $\"\"$ )

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$\"\"$ (Apply Additive identity proparty: $\"\"$ )

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

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$\"\"$ (Subtract 2 from both sides)

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$\"\"$ (Apply Additive inverse proparty: $\"\"$ )

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

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$\"\"$ (Divide both sides by $\"\"$ )

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$\"\"$ (Cancel common factors)

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

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$\"\"$

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The value of $\"\"$ .

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