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26 July, 17:17

There are 53 students on the school basketball team. the number of 8th graders is 15 fewer than 3 times the number of 7th graders. how many 7th graders are there?

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  1. 26 July, 17:33
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    17 7th graders

    Step-by-step explanation:

    grd 8 is x, grd 7 is y

    x+y=53

    x=3y-15

    use substitution: (3y-15) + y=53

    4y-15=53

    4y=68

    y=17
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