document.write( "Question 1139208: What is the next number please,
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document.write( "3, -6, 12, 4, 20 \n" );
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Algebra.Com's Answer #757034 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! The difference is -9 and +18 then -8 and +16, so choose -7 so the next number will be 13. \n" ); document.write( " |