document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1113986>Question 1113986</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Father is 53 and son is 17.How many years ago father was 10 times older than his son?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #729020 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=729020\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 53-x = 10(17-x)<BR>\n" );
document.write( "53-x = 170-10x<BR>\n" );
document.write( "9x = 117<BR>\n" );
document.write( "x = 13 <BR>\n" );
document.write( "13 years ago the father was 10 times older than his son<BR>\n" );
document.write( "-----------------------------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "53-13 = 40 father<BR>\n" );
document.write( "17-13 = 4 son<BR>\n" );
document.write( "and 4 times 10 = 40 <BR>\n" );
document.write( "Correct! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );