document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=927791>Question 927791</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the 1st term of the arithmetic sequence with 11th term &#8722;1 and 21th term 7. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #563270 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=563270\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the formulas.\r<BR>\n" );
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document.write( "d, common difference<BR>\n" );
document.write( "n, term index<BR>\n" );
document.write( "a, first term <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B1%5D ALIGN=MIDDLE  ALT=\"a%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Bn%5D=a%2B%28n-1%29d ALIGN=MIDDLE  ALT=\"a%5Bn%5D=a%2B%28n-1%29d\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Use this formula and make two linear equations in the variables, a and d. </SPAN>\n" );
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