Math

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A bag holds 57 green and blue marbles. There are 13 more blue marbles then green marbles. How many marbles of each color are there?

  • Math -

    x=green marbles
    y=blue marbles
    x+y=57
    x+13=y b/c there are 13 more blue marbles
    substitute in to other equation
    x+(x+13)=57
    then solve for x, then for y add 13 to x

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