document.write( "Question 805346: What is number is next in the sequence?.....3,-6,12,4,20,? \n" ); document.write( "
Algebra.Com's Answer #485408 by AnlytcPhil(1806)\"\" \"About 
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document.write( "Start with       3\r\n" );
document.write( "Subtract 9, get -6\r\n" );
document.write( "Add 18,     get 12\r\n" );
document.write( "Subtract 8, get  4\r\n" );
document.write( "Add 16,     get 20\r\n" );
document.write( "Subtract 7, get 13\r\n" );
document.write( "Add 14,     get 27\r\n" );
document.write( "Subtract 6, get 21\r\n" );
document.write( "Add 12,     get 33\r\n" );
document.write( "Subtract 5, get 28\r\n" );
document.write( "Add 10,     get 38\r\n" );
document.write( "Subtract 4, get 34\r\n" );
document.write( "Add 8,      get 42\r\n" );
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document.write( "etc., etc.\r\n" );
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document.write( "Edwin
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