$\"\"$

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The equation is $\"\"$ .

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Subtract $\"\"$ from each side.

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$\"\"$

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Divide each side by negative $\"\"$ .

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$\"\"$

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Apply natural logarithm to each side.

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$\"\"$

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Inverse relations of logarithms: $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .