document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=758940>Question 758940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two years ago, a man was 7 times as old as his son. In 3 years time, he will be only 4 times as old as son. Find the present age of the man and of 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 #461733 by </B><A HREF=/tutors/aboutme.mpl?userid=Menjax><B>Menjax(62)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Menjax><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=461733\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Defince unknowns<BR>\n" );
document.write( "Let M = Man's current age<BR>\n" );
document.write( "Let S = Son's current age<BR>\n" );
document.write( "Dissect the question to get your equations<BR>\n" );
document.write( "(M-2) = 7(S-2) #1<BR>\n" );
document.write( "(M+3) = 4(S+3) #2<BR>\n" );
document.write( "From #1  M = 7S-12<BR>\n" );
document.write( "Sub above into #2<BR>\n" );
document.write( "7S-9=4S+12<BR>\n" );
document.write( "3S=21<BR>\n" );
document.write( "S=7<BR>\n" );
document.write( "Sub S into #1<BR>\n" );
document.write( "M-2=7(7-2)<BR>\n" );
document.write( "M=37\r<BR>\n" );
document.write( "\n" );
document.write( "So the man's current age is 37 years old and his son's age is 7 years old<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );