1. ## logarithm equation

ln(100,000 - X) = 11.45714

Need to find X, I know X = 5426 , I just don't know how to get it...

...and it's driving me craaaazy.

2. Originally Posted by Steviep3000
ln(100,000 - X) = 11.45714

Need to find X, I know X = 5426 , I just don't know how to get it...

...and it's driving me craaaazy.

If:

ln(100,000 - X) = 11.45714

then

100,000 - X = e^{11.45714} = 94574.2..

so:

X ~= 100000 - 94574.2 ~= 5426

RonL

3. ## Thanks

Thanks a lot mate.