document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1200739>Question 1200739</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son. what is the fathers present age.? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #834944 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=834944\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f = father's age<BR>\n" );
document.write( "x = his son's age.<BR>\n" );
document.write( "f = 5x<BR>\n" );
document.write( "f-4 = 9*(x-4)<BR>\n" );
document.write( "in the second equation replace f with 5x to get:<BR>\n" );
document.write( "5x-4 = 9*(x-4)<BR>\n" );
document.write( "simplify to get:<BR>\n" );
document.write( "5x-4 = 9x-36<BR>\n" );
document.write( "subtract 5x from both sides of the equation and add 36 to both sides of the equation to get:<BR>\n" );
document.write( "32 = 4x<BR>\n" );
document.write( "solve for x to get:<BR>\n" );
document.write( "x = 8<BR>\n" );
document.write( "f = 5x means f = 40<BR>\n" );
document.write( "f-4 = 36<BR>\n" );
document.write( "x-4 = 4<BR>\n" );
document.write( "36 = 9 * 4.<BR>\n" );
document.write( "solution is confirmed to be good.<BR>\n" );
document.write( "solution is father's present age is 40.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );