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I have the following equation:

$$e^{-x}(1+x) = 0.935$$

How can I solve for $x$ by hand? I remember I learned an easy way to solve it, which I forgot. Any help?

Thanks,

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1 Answer 1

up vote 2 down vote accepted

Your equation is NOT solvable by any direct means. The solution can be expressed with the so called, Lambert-W function. Here is a numerical solution

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