22-11-2014
Mathematics

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one fourth of the opposite of the difference of five and a number is less than 20

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konrad509 konrad509

22-11-2014

[tex]\frac{1}{4}(-(5-x))<20\\ \frac{1}{4}(-5+x)<20\\ -\frac{5}{4}+\frac{x}{4}<20\\ -5+x<80\\ x<85[/tex]

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