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Math Help - The final problem..

  1. #1
    Junior Member
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    The final problem..

    Ok, i dont know if its because ive been up all night working on homework of various classes and am just missing something, or if im completely off..but i cannot get this problem. its due tomorrow, and its the only one i have left..
    -(8n-2) = 3+10(1-3n)
    i add the 3 and 10..
    -(8n-2)=13(1-3n)
    then distribute on both sides...
    -8n+2=13-39n
    add 8n to each side
    2=13-47n
    subtract 13 from each side
    -11=47n
    and then divide 47 from each side, which ends with
    .23404255319148936170212765957447=n

    ...somehow i doubt this is correct. did i mess up somewhere? thanks in advance
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  2. #2
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    Hello, Nightfire!

    -(8n-2) \:= \:3+10(1-3n)

    i add the 3 and 10..
    . . -(8n-2) \:=\:13(1-3n) . . . . wrong!

    Distribute on both sides: . -8n +2 \:=\:3 + 10 - 30n

    Now finish the problem . . .

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  3. #3
    Junior Member
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    last problem

    -8n+2 = 3 + 10 - 30n
    -8n + 2 = 13 - 30n
    22n = 11
    n = 11/22
    n = 1/2
    I think this is correct
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  4. #4
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    ok, i got it now. thanks..now im off to bed. i missed a day of school to a 48hour virus and another to a field trip, so i had a ton of homework..and now its done. good night!
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  5. #5
    Forum Admin topsquark's Avatar
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    This is off topic, but every time I see a post with this name I want to dig out my Sherlock Holmes collection. (That particular short story is the one where Holmes confronts Moriarty.)

    -Dan
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