document.write( "Question 763120:  Solve for x
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document.write( "3^(x+4)=27^(2x) \n" );
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| Algebra.Com's Answer #464491 by Polyhymnio(2)     You can put this solution on YOUR website! Since 27 = 3^3, we can rewrite the equation as\r \n" ); document.write( "\n" ); document.write( "3^(x + 4) = 3^(6x)\r \n" ); document.write( "\n" ); document.write( "Then take base 3 logarithms of both sides\r \n" ); document.write( "\n" ); document.write( "x + 4 = 6x\r \n" ); document.write( "\n" ); document.write( "5x = 4\r \n" ); document.write( "\n" ); document.write( "x = 4/5 \n" ); document.write( " |