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March 26, 2017

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21-3c if c=7

  • Math - ,

    ?????

  • Math - ,

    .....................................................................................................................

  • Math - ,

    how did you get 7 for a answer

  • Math - ,

    21-21 = 0

  • Math - ,

    21-3c if c=7
    {substitute and solve}.
    so...
    21-3x7
    21-21
    =0

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