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23-05-2017
Mathematics

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Twice a number decreased by the quotient of That Number and 2 is at least 12

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apologiabiology apologiabiology

23-05-2017

da number is n
2n-(n/2)≥12
times both sides by 2
4n-n≥24
3n≥24
divide both sides by 3
n≥8

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