Schwisa Schwisa

06-07-2016
Mathematics

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Five times the difference of a number and two is seven more than that number

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texaschic101 texaschic101

06-07-2016

5(n - 2) = n + 7
5n - 10 = n + 7
5n - n = 7 + 10
4n = 17
n = 17/4 or 4 1/4 <== ur answer

check..
5(n-2) = n + 7
5(17/4 - 2) = 17/4 + 7
5(17/4 - 8/4) = 17/4 + 28/4
5(9/4) = 45/4
45/4 = 45/4 (correct)

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