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Posted by on Tuesday, November 2, 2010 at 12:36am.

4n+8=9n-7

  • 7th grade - , Tuesday, November 2, 2010 at 12:52am

    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 - , Thursday, November 18, 2010 at 10:58pm

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

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