marinaklat marinaklat

10-09-2016
Mathematics

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the sum of nine times a number and fifteen is less than or equal to the sum of twenty four and ten times the number

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texaschic101 texaschic101

10-09-2016

9n + 15 < = 10n + 24
9n - 10n < = 24 - 15
-n < = 9
n > = -9

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