$\"\"$

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The equation is $\"\"$ .

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Apply logarithm from each side.

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$\"\"$

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Apply power property of logarithm: $\"\"$ .

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$\"\"$

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Divide each side by $\"\"$ .

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$\"\"$

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

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Using calculator: $\"\"$ .

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$\"\"$ \ \

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

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$\"\"$ (Add 3 to each side)

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

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$\"\"$ (Take square root each side)

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$\"\"$ (Evaluate square roots: $\"\"$ ) $\"\"$

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The value of $\"\"$ .