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December 18, 2014

December 18, 2014

Posted by **Trish** on Thursday, December 1, 2011 at 10:51pm.

I can not figure out how to put the equation into the TI-84 to get the approximate form

3/5 ln(5x-1)+1 =1.4 subtract 1 from

sides and divide

by 3/5

lh(5x-1)=0.6667 Put in logarithm form

e^0.6667=5x-1 add 1 to both sides

e^0.6667=5x Divide by 5

e^0.6667 +1/5 exact form

- college algebra -
**Reiny**, Thursday, December 1, 2011 at 11:34pmI would leave the .66667 as 2/3, since your are talking about "exact" form

3/5 ln(5x-1)+1 =1.4

3/5 ln(5x-1) = .4

ln(5x-1) = 2/3

5x - 1 = e^(2/3)

5x = e^(2/3) + 1

x = (e^(2/3) + 1)/5 or (1/5)e^(2/3) + 1/5

your forgot to divide the first term by 5 and only divided 1 by 5

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