document.write( "Question 1133133: Select the option for \"?\" that continues the pattern in each question. 3, -6, 12, 4, 20, ? \n" ); document.write( "
Algebra.Com's Answer #750324 by Alex.33(110)\"\" \"About 
You can put this solution on YOUR website!
Just here to offer one way to understand this.
\n" ); document.write( "3-9=-6
\n" ); document.write( "-6+2*9=12
\n" ); document.write( "12-8=4
\n" ); document.write( "4+2*8=20
\n" ); document.write( "20-7=13
\n" ); document.write( "(and then 13+2*7=27)\r
\n" ); document.write( "\n" ); document.write( "In this way, ?=13. But just maybe. If 13 is in your list of options, perhaps I am right.
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