document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=550376>Question 550376</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.) A man is four times as old as his son. In three years,the father will be three times as old as his son. How old is each three years ago? Please show me the complete procedure,thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #358678 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=358678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> son be x years<BR>\n" );
document.write( "father = 4x\r<BR>\n" );
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document.write( "after 3 years<BR>\n" );
document.write( "son will be x+3 <BR>\n" );
document.write( "father will be 4x+3\r<BR>\n" );
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document.write( "4x+3 = 3(x+3)\r<BR>\n" );
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document.write( "4x+3= 3x+9<BR>\n" );
document.write( "4x-3x=9-3<BR>\n" );
document.write( "x=6\r<BR>\n" );
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document.write( "son's ge = 6 now<BR>\n" );
document.write( "father's age = 24 years\r<BR>\n" );
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document.write( "3 years ago<BR>\n" );
document.write( "son = 3years<BR>\n" );
document.write( "father = 21 years\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );