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08-10-2016
Mathematics

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twice the difference of five and n is the same as two subtracted from negative one times n

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08-10-2016

2(5-n)=-2+(-1*n)
2(5-n)=-n-2
distribute
10-2n=-n-2
add 2n to both sides
10=n-2
add 2 to both sides
12=n

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