document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=761933>Question 761933</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Average<BR>\n" );
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document.write( "we have: 10 , 10 , and 1  we found their average and it was 7. we found it by<BR>\n" );
document.write( "(10+10+1)/3\r<BR>\n" );
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document.write( "so we got the total average<BR>\n" );
document.write( "but what if the total average is given , and 2 numbers are give how will we find the firt lets see :<BR>\n" );
document.write( " 10 , 10 , x   total makes 7\r<BR>\n" );
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document.write( " Find X </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #463591 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=463591\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  10 , 10 , x   total makes 7<BR>\n" );
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document.write( "Sum = # of elements * average<BR>\n" );
document.write( "There are 3 elements, so 10 + 10 + x = 3*7 = 21<BR>\n" );
document.write( "x = 1<BR>\n" );
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