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

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The equation is $\"\"$ \ \

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According to subtraction property of equality: a = b then $\"\"$ .

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$\"\"$ (Subtract 3 from each side)

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$\"\"$ (Commutative property: a + b = b + a)

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$\"\"$ (Additive inverse property: $\"\"$ )

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$\"\"$ (Additive identity property: $\"\"$ )

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

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$\"\"$ (Multipliy each side by negative one)

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

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$\"\"$ (Multiply each side by 2)

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$\"\"$ (Cancel common terms)

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

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The value of $\"\"$

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