S132223 S132223

05-10-2020
Mathematics

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What are the solutions of the inequality |7x|≥21

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konrad509 konrad509

05-10-2020

[tex]|7x|>21\\7|x|>21\\|x|>3\\x>3 \vee x<-3\\x\in(-\infty,-3)\cup(3,\infty)[/tex]

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