document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=835961>Question 835961</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jill is 3 times as old as her cousin Dennis. In 4 years, she will be twice as old as Dennis. What will the sum of their ages be in 4 years? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #503853 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=503853\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jill is 3 times as old as her cousin Dennis. In 4 years, she will be twice as old as Dennis.<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "j = 3d<BR>\n" );
document.write( "j+4 = 2(d+4)<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Substitute for \"j\" and solve for \"d\"::<BR>\n" );
document.write( "3d+4 = 2d+8<BR>\n" );
document.write( "d = 4 (Dennis's age now)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "j = 3d = 12 years (Jill's age now)<BR>\n" );
document.write( "------------------------------------------\r<BR>\n" );
document.write( "\n" );
document.write( "What will the sum of their ages be in 4 years?<BR>\n" );
document.write( "Ans: (4+4)+(12+4) = 24 <BR>\n" );
document.write( "===========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );