document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983425>Question 983425</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Nine years ago, I was one more than eleven times as old as my son Mike. Now, I am seven more than three times as old as him. How old was my son 9 years ago? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604271 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=604271\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Nine years ago, I was one more than eleven times as old as my son Mike. Now, I am seven more than three times as old as him. How old was my son 9 years ago?<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "F = father's age 9 yrs ago<BR>\n" );
document.write( "S = son's age 9 yrs ago<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "F = 11S + 1<BR>\n" );
document.write( "F + 9 = 3(S + 9) + 7 --> F = 3S + 25<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "11S + 1 = 3S + 25<BR>\n" );
document.write( "8S = 24<BR>\n" );
document.write( "S = 3 was son's age 9 yrs ago\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );