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if (8x + l3y)/(8x - 13y) = (9)/(7), find...

if `(8x + l3y)/(8x - 13y) = (9)/(7)`, find `x : y`.

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The correct Answer is:
`x:y=13:1`
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ICSE-RATIO AND PROPORTION (INCLUDING PROPERTIES AND USES)-QUESTIONS
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