document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329852>Question 329852</A>: <I><SPAN STYLE=\"word-break: break-all;\"> David is twice as old as his daughter.  In 4 years, David's age will be three times what his daughter's age was 6 years ago.  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 #236424 by </B><A HREF=/tutors/aboutme.mpl?userid=galactus><B>galactus(183)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=galactus><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=galactus><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=236424\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let D=David's age now and d=daughters age now.\r<BR>\n" );
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document.write( "David is twice her age: D=2d\r<BR>\n" );
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document.write( "4 years from now, David's age: D+4\r<BR>\n" );
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document.write( "is 3 times his daughters age 6 years ago: 3(d-6)\r<BR>\n" );
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document.write( "So, put it together and we have D+4=3(d-6)\r<BR>\n" );
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document.write( "Make the sub D=2d and we have 2d+4=3(d-6)\r<BR>\n" );
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document.write( "d=22 and D=44\r<BR>\n" );
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document.write( " </SPAN>\n" );
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