February 22, 2017

Homework Help: College Algebra

Posted by Lee on Sunday, November 14, 2010 at 2:33am.

Problem: Use Common or Natural Logarithims to solve the exponential equations symboliclly.

(Round to four decimal places)

I tried solving this way

ln e^7x+4=ln 2
7x+4=ln 2
7x+4-4=ln 2-4
7x=ln 2-4
7x/7=ln 2-4/7
x=ln 2-4/7
then I at a lose at this point.
What step should I perform next.
I know I'm suppose to use the calculator for the estimated solution, but I'm not coming up with the correct answer. Help!!!

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