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3=5/(1+2e^(-x))
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do we need to simplify?
need to solve it for x
K
where would I begin?
3=5/(1+2e^(-x)) =>3(1+2e^(-x))=5 =>3+6e^(-x) =5 =>6e^(-x)=2 =>e^(-x)=1/3 take log on both sides -x =log (1/3) -x=-log 3 =>x=log 3
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why do you switch the 3 and the 5?
in order to simplify
but then how does the 5 become the 2? how did you get to that step?
ohhh I see now
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