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sean has $86 to spend. he can spend all of it on one cd and two dvd's, or he can buy two cd's and one dvd and have $16 left over. what is the price of a cd? of a dvd?

  • algebra -

    Let c = cd and d = dvd

    c + 2d = 86
    2c + d = 86-16

    Use whatever method you want to solve these equations, elimination or substitution.

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