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7th grade

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4n+8=9n-7

  • 7th grade -

    4n + 8 = 9n-7
    4n+8-8=9n-7-8
    4n=9n-15
    4n-9n=9n-9n-15
    -5n=-15
    -5n/-5=-15/-5
    n=3

  • 7th grade -

    15 over 13 as a fraction or .8666666............

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