document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=557270>Question 557270</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to find the nth term in some equations for my exams on monday and i forgot how to do it. <BR>\n" );
document.write( "The terms are 1 2 3 4 <BR>\n" );
document.write( "The values are 3 7 11 15 <BR>\n" );
document.write( "and i have to find the 20th term <BR>\n" );
document.write( "How do i do it?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #362515 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=362515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have to find the nth term in some equations for my exams on monday and i forgot how to do it. <BR>\n" );
document.write( "The terms are 1 2 3 4 <BR>\n" );
document.write( "The values are 3 7 11 15 <BR>\n" );
document.write( "and i have to find the 20th term <BR>\n" );
document.write( "------<BR>\n" );
document.write( "You have an arithmetic sequence with a(1) = 3 and d = 4<BR>\n" );
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document.write( "Formula: a(n) = a(1) + (n-1)d<BR>\n" );
document.write( "---<BR>\n" );
document.write( "So, a(20) = 3 + 19*4 = 3 + 76 = 79<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );