document.write( "Question 603513: Solve the following logarithmic equation:
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document.write( "log(90x+40)=2+log(x-6) \n" );
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Algebra.Com's Answer #380730 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve the following logarithmic equation: \n" ); document.write( "log(90x+40)=2+log(x-6) \n" ); document.write( "----- \n" ); document.write( "log(90x+40)-log(x-6) = 2 \n" ); document.write( "--- \n" ); document.write( "log[(90x+40)/(x-6)] = 2 \n" ); document.write( "------------------- \n" ); document.write( "(90x+40)/(x-6) = 100 \n" ); document.write( "90x+40 = 100x-600 \n" ); document.write( "10x = 640 \n" ); document.write( "--- \n" ); document.write( "x = 64 \n" ); document.write( "============ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========== \n" ); document.write( " |