SOLUTION: Solve for x: {{{ 10/(1+e^(-x)) = 2 }}} Thanks

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Solve for x: {{{ 10/(1+e^(-x)) = 2 }}} Thanks       Log On


   

Question 959487: Solve for x: +10%2F%281%2Be%5E%28-x%29%29+=+2+

Thanks

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F%281%2Be%5E%28-x%29%29=1%2F5

1%2Be%5E%28-x%29=5
e%5E%28-x%29=4
1%2Fe%5Ex=4
e%5Ex=1%2F4

highlight%28ln%284%29=x%29

x=1.38629...

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x: +10%2F%281%2Be%5E%28-x%29%29+=+2+

Thanks
highlight_green%28x+=+-+1.386294361%29