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A moving Company weighs 20 boxes you have packed that contain either books or clothes and says the total weight is 404 pounds. You know that a box of books weighs 40 pounds and a box of clothes weighs 7 pounds. Find how many boxes of books and how many boxes of clothes you packed.

  • Algebra - ,

    number of boxes of books ---> x
    number of boxes of clothing ---> 20-x

    40x + 7(20-x) = 404

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