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math

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ther are 33 students in the band. there are 6 more fifthgrade students than thirdgrade students. there are an equal number of third and fourthgrade students.how many thirdgrade students are in the band?

  • math -

    x =# fifth grade students.
    y = # fourth grade students
    z = # third grade students.
    =========================
    x + y + z = 33
    x = z + 6
    y = z
    Solve for x, y, z.

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