document.write( "Question 115727: Please solve for all values of x
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document.write( "x/(x+3)= 5/(x+7)\r
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document.write( "question from practice regents \n" );
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Algebra.Com's Answer #84202 by stanbon(75887) ![]() You can put this solution on YOUR website! x/(x+3)= 5/(x+7)\r \n" ); document.write( "\n" ); document.write( "x(x+7) = 5(x+3) \n" ); document.write( "x^2+7x = 5x+15 \n" ); document.write( "x^2+2x-15 = 0 \n" ); document.write( "(x+5)(x-3) = 0 \n" ); document.write( "x = -5 or x = 3 \n" ); document.write( "------------ \n" ); document.write( "But x cannot be 3 in the original equation. \n" ); document.write( "Therefore x=-5 is the only solution. \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |