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

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The expression is $\"\"$

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$\"\"$ (Substitute $\"\"$ )

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Dstribute terms using distributive property: $\"\"$ .

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$\"\"$ (Distribute 6)

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

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

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$\"\"$

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The value of the expression is 45.