document.write( "Question 386461: How to solve for x: (exp x) - x = a \n" ); document.write( "
Algebra.Com's Answer #273318 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! There's not a closed form solution. \n" ); document.write( "You need to use Newton's method. \n" ); document.write( "You're solving for the intersection of a line with the exponential curve. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "As you see, you can have 0, 1, or 2 solutions depending on |