document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=590969>Question 590969</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A man is presently 4 times the age of his son. He learned that 3 years ago he was 7 times the age of his son. 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 #375395 by </B><A HREF=/tutors/aboutme.mpl?userid=alicealc><B>alicealc(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=alicealc><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=375395\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let:<BR>\n" );
document.write( "Man's age = m years old<BR>\n" );
document.write( "Son's age = s years old\r<BR>\n" );
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document.write( "m = 4*s\r<BR>\n" );
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document.write( "m - 3 = 7*(s - 3)<BR>\n" );
document.write( "4s - 3 = 7s - 21<BR>\n" );
document.write( "21 - 3 = 7s - 4s<BR>\n" );
document.write( "18 = 3s<BR>\n" );
document.write( "s = 18/3 s = 6<BR>\n" );
document.write( "m = 4s = 4*6 = 24\r<BR>\n" );
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document.write( "So, now, the man is 24 years old, and his son is 6 years old\r<BR>\n" );
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