Asked by zach
I need some help with ln 's I am trying to solve : ln(x+3)- ln(x-5)= ln7
do I: ln (x+3)/(x-5)= ln 7 ?
do I: ln (x+3)/(x-5)= ln 7 ?
Answers
Answered by
Steve
yes. Then since the logs are equal, so are the numbers, and you have
(x+3)/(x-5) = 7
x = 19/3
(x+3)/(x-5) = 7
x = 19/3
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