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OpenStudy (anonymous):
I need some help solving proportions
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OpenStudy (anonymous):
cross multiply to eliminate the fractions
OpenStudy (anonymous):
\[\left(\begin{matrix}3x-12 \\ 3x\end{matrix}\right)=\left(\begin{matrix}4x^{2}-9 \\ 4x ^{2}-16x+15\end{matrix}\right)\]
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