abdulmohmand1 abdulmohmand1

18-01-2016
Mathematics

contestada

thirteen from twice a number is equal to seventeen .what is the number

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musicgirl934 musicgirl934

18-01-2016

This one you sort of need to work backwards.

17=2n - 13
(Add 13 to both sides.)
30=2n
(Divide both sides by 2 to get n by itself.)
15=n.
The number is 15.
Hope this helps!

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