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We know x is a number …

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We know x is a number and so also are 3x and 4x.

    • Posted by Bhawana Jani 6 years, 10 months ago

    CBSE > Class 07 > Mathematics
    • 1 answers

    Bhawana Jani 6 years, 10 months ago

    3x + 4x=(3xX) +(4xX) =(3+4)xX. (using distributive law) =7xX=7x Or 3x+4x=7x

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