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31-12-2014
Mathematics

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solve the inequality 3k + 7 < 2k + 9

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31-12-2014

3k + 7 < 2k + 9
k + 7 < 9
k < 2

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Аноним Аноним

31-12-2014

[tex]3k+7 < 2k+9\ \ \ \ |subtract\ 7\ from\ both\ sides\\\\3k < 2k+2\ \ \ \ \ |subtract\ 2k\ from\ both\ sides\\\\\boxed{k < 2\to k\in(-\infty;\ 2)}[/tex]

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