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March 30, 2017

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Not sure if I'm doing this right

Ln(3x-4)-Ln(x+1)=Ln(2)

My solution:
Ln 3x-4/x+1 =Ln2
3x-4/x+1=2/1
2x+2=3x-4
2=x-4
6=x

  • algebra - ,

    yes you are correct, but you must put brackets when typing in this format.
    On paper you probably extend the fraction bar over the (x+1) but the way you typed it, it would be understood as
    3x - 4/x + 1 as 3 separate terms on the left side

    check out this reply
    http://www.jiskha.com/display.cgi?id=1270500607

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