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If 1 is less than a number is divided by 5 less than twice the number the result is 21over39 wat is the number? plsssssssssss answer!

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asked by hi
  1. (n-1)/(2n-5) = 21/39
    39(n-1) = 21(2n-5)
    39n-39 = 42n - 105
    3n = 66
    n=22

    (n-1)/(2n-5) = 21/39

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    posted by Steve

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