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25 January, 11:32

Combine like terms 4x-5 + (-7x) + 9=

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  1. 25 January, 11:34
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    Just combine the x terms and the number terms exg

    3x+4x=x (3+4) = 7x

    so 4x-5 + (-7x) + 9=

    4x-5-7x+9

    (4x-7x) + (-5+9) =

    x (4-7) + (4) =

    -3x+4

    or 4-3x
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