document.write( "Question 220779: The difference of twice a number and 6 is 20. \n" ); document.write( "
Algebra.Com's Answer #165665 by RAY100(1637)\"\" \"About 
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Let n= number
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\n" ); document.write( "2n-6 =20
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\n" ); document.write( "2n=26
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\n" ); document.write( "n=13
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\n" ); document.write( "check,,,,2(13)-6 =20,,,,ok
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