document.write( "Question 403899: solving exponential equations\r \n" );
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document.write( "I'm close, but can't quite get it.\r \n" );
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document.write( "the problem is 4 - 2e^x (x is the exponent) = -23 \n" );
document.write( "I first substracted 4 from each side \n" );
document.write( "-2e^x = -27 \n" );
document.write( "I then divided both sides by -2 \n" );
document.write( "e^x = 13.5 \n" );
document.write( "then I took a common log of each side \n" );
document.write( "log e^x = log 13.5 \n" );
document.write( "x = 13.5\r \n" );
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document.write( "but the answer is ln 13.5. Why? \n" );
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