document.write( "Question 54243: What number is equal to its double? \n" ); document.write( "
Algebra.Com's Answer #36553 by Cintchr(481)\"\" \"About 
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What number is equal to its double?
\n" ); document.write( "Lets test this ... Double means *2
\n" ); document.write( "-3 * 2 = -6
\n" ); document.write( "-2 * 2 = -4
\n" ); document.write( "-1 * 2 = -2
\n" ); document.write( "0 * 2 = 0
\n" ); document.write( "1 * 2 = 2
\n" ); document.write( "2 * 2 = 4
\n" ); document.write( "Looks like only zero fits the stated condition.
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