document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1002726>Question 1002726</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Five years from now, a father's age will be three times his son's age, and 5 years ago, he was seven times as old as his son was. What are their present ages? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #619589 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=619589\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Call the father's and son's ages NOW, f and s.<BR>\n" );
document.write( "f + 5 = 3(s + 5) = 3s + 15<BR>\n" );
document.write( "f - 5 = 7(s - 5) = 7s - 35<BR>\n" );
document.write( "Subtract equations and get<BR>\n" );
document.write( "10 = -4s + 50<BR>\n" );
document.write( "-40 = -4s <BR>\n" );
document.write( "s = 10<BR>\n" );
document.write( "f = 40 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );