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03-11-2016
Mathematics

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Translate the sentence into an inequality. Twice the difference of a number and 7 is at most −20 . Use the variable y for the unknown number.

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ampofoeugenia7 ampofoeugenia7

08-11-2016

If the number is y then the inequality is
twice the difference of y and 7=2(y-7)
at most- 20=less than or equal to
2(y-7)≤-20

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