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23-03-2017
Mathematics

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If x is an even number, write an expression for the even number that comes directly before x.

Respuesta :

23-03-2017

When counting by even or odds you have to add or subtract 2.
The even number that comes before x is x-2

To check this let 8 be x.
8 - 2 = 6
6 is also an even number

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