document.write( "Question 121951: I'm actually not sure if this question falls in this category but it looks like it does. I help my daughter with her Math homework every night but for some reason, this question really has me stumped. Please help!
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document.write( "-3(x+4)=3(3-x) what does x equal??? I've tried -3x-12=9-3x then i added 12 to each side: -3x=21-3x i then tried to add 3x to each side but that didn't seem to work. the best answer i could come up with was x-x=7 and that just doesn't make sense.
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document.write( "thanks!! \n" );
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Algebra.Com's Answer #89504 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! -3(x+4)=3(3-x) what does x equal? \n" ); document.write( "-3x-12 = 9-3x \n" ); document.write( "-12 = 9 \n" ); document.write( "That is a contradiction and tells you \n" ); document.write( "there are no solutions to the equation. \n" ); document.write( "================ \n" ); document.write( "Why did that happen? \n" ); document.write( "It happened because you assumed the \"x\" on \n" ); document.write( "the left side had the same value as the \"x\" \n" ); document.write( "on the right side. \n" ); document.write( "As a result you ran into a contradiction. \n" ); document.write( "x on the left cannot equal the x on the right. \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |