document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=464507>Question 464507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A father is thrice as old as his son . Five years Ago , he was four times as old. How old is the father? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #318229 by </B><A HREF=/tutors/aboutme.mpl?userid=amoresroy><B>amoresroy(361)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amoresroy><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=amoresroy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=318229\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A father is thrice as old as his son . Five years Ago , he was four times as old. How old is the father?\r<BR>\n" );
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document.write( "Let x = age of the son<BR>\n" );
document.write( "   3x = age of the father\r<BR>\n" );
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document.write( "3x-5 = 4(x-5)<BR>\n" );
document.write( "3x-5 = 4x -20<BR>\n" );
document.write( "20-5 = 4x -3x<BR>\n" );
document.write( "x = 15<BR>\n" );
document.write( "3x = 3(15) = 45\r<BR>\n" );
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document.write( "The father is 45 years old.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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