document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1129606>Question 1129606</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average set of n numbers is 23. When -35 is added to the set, the average is 21. How many numbers were in the original set? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #746167 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=746167\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The average set of n numbers is 23. When -35 is added to the set, the average is 21.<BR>\n" );
document.write( " How many numbers were in the original set? <BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2823n-35%29%2F%28n%2B1%29 ALIGN=MIDDLE  ALT=\"%2823n-35%29%2F%28n%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 21<BR>\n" );
document.write( "23n - 35 = 21(n+1)<BR>\n" );
document.write( "23n - 35 = 21n + 21<BR>\n" );
document.write( "23n - 21n = 21 + 35<BR>\n" );
document.write( "2n = 56<BR>\n" );
document.write( "n = 56/2<BR>\n" );
document.write( "n = 28<BR>\n" );
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document.write( "Check this<BR>\n" );
document.write( "23(28) - 35 = 609<BR>\n" );
document.write( "609/29 = 21 </SPAN>\n" );
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