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18-10-2016
Mathematics

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find the sum: (5x / 7x - y) (4 / y - 7x)

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forbesij forbesij

20-10-2016

[tex]\frac{5x}{7x-y} / \frac{4}{y-7x} = \frac{5x}{7x-y} * \frac{y-7x}{4} = -\frac{5x}{4}[/tex]

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