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06-05-2014
Mathematics

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If (x-1) / x =20 , then x=

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06-05-2014

[tex] \frac{ x-1 }{x} =20 \\ \\ x\neq 0\\ \\20x=x-1\\ \\20x - x = -1\\ \\19x = -1 \ \ / :19 \\ \\x= -\frac{1}{19}[/tex]

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