Mattrobb1213 Mattrobb1213

04-11-2014
Mathematics

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What is 6-4(6n+7) is greater than or equal to 122?

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04-11-2014

[tex]6-4(6n+7)\ge122\\\\6-24n-28\ge122\\\\-24n\ge122-6+28\\\\-24n\ge143\ \ \ \ |:-24\\\\n\le-6\\\\n\in(-\infty,-6\rangle[/tex]

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