## Elementary Algebra

$x=15$
Using cross-multiplication and the properties of equality, the value of the variable that satisfies the given equation, $\dfrac{x}{9}=\dfrac{5}{3} ,$ is \begin{array}{l}\require{cancel} x(3)=9(5) \\\\ 3x=45 \\\\ x=\dfrac{45}{3} \\\\ x=15 .\end{array}
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