27-10-2019
Mathematics

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I am working on a test review. How can I write -1 <= 2x+7 <21 as two inequality statements? How do I join them with and/or? This is for Algebra Compound Inequalities.

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KillowPeak KillowPeak

27-10-2019

Answer:

[tex]( - 1 > 2x + 7)(2x + 7 < 21)[/tex]

Not sure about the and/or statement

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