SOLUTION: ln x = 3 - x, solve for x, exact answer.

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: ln x = 3 - x, solve for x, exact answer.      Log On


   



Question 169729This question is from textbook
: ln x = 3 - x, solve for x, exact answer. This question is from textbook

Answer by Edwin McCravy(20059) About Me  (Show Source):
You can put this solution on YOUR website!
ln%28x%29+=+3+-+x, solve for x, exact answer.

Sorry, there is no algebraic method for
solving equations in which the unknown is
both part of a logarithm expression and
also not part of a logarithm expression.

There is no way to find an exact answer,
either.  All we can do is approximate
the solution using iterative methods,
infinite series, or graphical calculator.

The approximate solution by graphical 
calculator is

x=2.2079400315694

If you want to know how to do it by
graphical calculator, post again asking
how.

Edwin