The equation is $\"\"$ .

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Divide each side by 16.

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$\"\"$

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Apply exponential formula: $\"\"$ .

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$\"\"$

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$\"\"$

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Subtract 7 from each side.

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$\"\"$

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Divide each side by 5.

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$\"\"$

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$\"\"$

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$\"\"$

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The solution is $\"\"$ .

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