document.write( "Question 979580: solve for x:\r
\n" ); document.write( "\n" ); document.write( "2/x+4 - 1/x+3 = 1 - 2/x^2+7x+12\r
\n" ); document.write( "\n" ); document.write( "please help homework for tomorrow
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Algebra.Com's Answer #600871 by Alan3354(69443)\"\" \"About 
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solve for x:\r
\n" ); document.write( "\n" ); document.write( "2/x+4 - 1/x+3 = 1 - 2/x^2+7x+12
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\n" ); document.write( "Find a common denominator.
\n" ); document.write( "x^2+7x+12 = (x+4)*(x+3) so that will work.
\n" ); document.write( "----
\n" ); document.write( "2(x+3)/DEN - (x+4)/DEN = (x^2+7x+12 - 2)/DEN
\n" ); document.write( "Multiply thru by the DEN
\n" ); document.write( "2x+6 -x-4 = x^2+7x+10
\n" ); document.write( "x+2 = x^2+7x+10
\n" ); document.write( "x^2 + 6x + 8 = 0
\n" ); document.write( "(x+2)*(x+4) = 0
\n" ); document.write( "x = -2
\n" ); document.write( "------------
\n" ); document.write( "x = -4
\n" ); document.write( "*********** x=-4 make the DEN of the 1st term zero, so it's not allowed.
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