document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=341776>Question 341776</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the first the terms of each arithmetic series.\r<BR>\n" );
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document.write( "first number= 14 last number= -85 sum of first n numbers= 900 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #244702 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=244702\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the first the terms of each arithmetic series. <BR>\n" );
document.write( "first number= 14 last number= -85 sum of first n numbers= -900<BR>\n" );
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document.write( "S(n) = (n/2)(1st + last)<BR>\n" );
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document.write( "-900 = (n/2)(14 + (-85))<BR>\n" );
document.write( "-1800 = n(-71)<BR>\n" );
document.write( "n = -1800/-71\r<BR>\n" );
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document.write( "n has to be a whole number, and this is not.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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