document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=956185>Question 956185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A man is 3 times as old as his son. In 10 years he will be twice as old as his son will be. How old are they now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #584167 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=584167\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A man is 3 times as old as his son. In 10 years he will be twice as old as his son will be. How old are they now?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "f = 3s<BR>\n" );
document.write( "f+10 = 2(s+10)<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Substitute for \"f\" and solve for \"s\"::<BR>\n" );
document.write( "3s+10 = 2s+20<BR>\n" );
document.write( "s = 10 yrs (son's age now)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "f = 3s = 30 yrs (father's age now)<BR>\n" );
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document.write( "Cheers<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------ </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );