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12 March, 01:00

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

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  1. 12 March, 01:35
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    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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