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  • 5 years ago

If 27^X=9 AND 2^(X-Y)=64; then Y=?

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  1. anonymous
    • 5 years ago
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    This is going to be complicated looking. You want to use a logarithm to solve for x in the first equation and substitute the answer into the second. This will allow you to solve for 'Y' in the second equation.

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