document.write( "Question 1089458: Hello I need help solving a geometric sequence, I need to find S20 for the series -1 + -3 + -5 + -7. And if possible I'd love to see the steps into solving this problem for future reference. \n" ); document.write( "
Algebra.Com's Answer #703803 by ikleyn(52864)\"\" \"About 
You can put this solution on YOUR website!
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