document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=841148>Question 841148</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4 ,1 ,-2<BR>\n" );
document.write( "Which term of the sequence is equal to -143 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #506672 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=506672\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First term: a1 = 4\r<BR>\n" );
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document.write( "Common Difference: d = -3\r<BR>\n" );
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document.write( "nth term:\r<BR>\n" );
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document.write( "an = a1 + d(n-1)\r<BR>\n" );
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document.write( "an = 4 + (-3)(n-1)\r<BR>\n" );
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document.write( "an = 4 - 3n + 3\r<BR>\n" );
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document.write( "an = -3n + 7\r<BR>\n" );
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document.write( "Plug in an = -143 and solve for n\r<BR>\n" );
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document.write( "an = -3n + 7\r<BR>\n" );
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document.write( "-143 = -3n + 7\r<BR>\n" );
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document.write( "-143-7 = -3n\r<BR>\n" );
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document.write( "-150 = -3n\r<BR>\n" );
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document.write( "-150/(-3) = n\r<BR>\n" );
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document.write( "50 = n\r<BR>\n" );
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document.write( "n = 50\r<BR>\n" );
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document.write( "So it's the <font color=\"red\">50th term</font>. </SPAN>\n" );
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