document.write( "Question 57367: (1/x)-(1/x+1)
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Algebra.Com's Answer #39098 by funmath(2933)\"\" \"About 
You can put this solution on YOUR website!
If I misinterpretted your problem, let me know and I'll edit it.
\n" ); document.write( "\"%28%281%2Fx%29-%281%2F%28x%2B1%29%29%29%2F%281%2F%28x%2B1%29%29\" The LCD for the top and the bottom is x*(x+1). Multiply the top and bottom by x(x+1)/1. The /1 helps keep things lined up. it's not essential.
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