document.write( "Question 178951: n-{1-[n-(1-n)-1]}\r
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Algebra.Com's Answer #133890 by Mathtut(3670)\"\" \"About 
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n-{1-[n-(1-n)-1]}
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\n" ); document.write( "n-{1-{n-1+n-1}}
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\n" ); document.write( "n-{1-{2n-2}}
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\n" ); document.write( "n-{1-2n+2}
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\n" ); document.write( "n-{3-2n}
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\n" ); document.write( "n-3+2n
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