Answer
$log_{7}(5x)-log_{7}4$
Work Step by Step
We know that $log_{b}\frac{x}{y}=log_{b}x-log_{b}y$ (where $x$, $y$, and $b$ are positive real numbers and $b\ne1$).
Therefore, $log_{7}\frac{5x}{4}=log_{7}(5x)-log_{7}4$.
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