document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72174>Question 72174</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7 years ago I was 11 times as old as my daughter. Now I am 4 times as old as her. How old am I? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51586 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=51586\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-7=11d<BR>\n" );
document.write( "x=4(d+7)<BR>\n" );
document.write( "4(d+7)-7=11d<BR>\n" );
document.write( "4d+28-7=11d<BR>\n" );
document.write( "11d-4d=21<BR>\n" );
document.write( "7d=21<BR>\n" );
document.write( "d=3 age of daughter 7 years ago. now she is 3+7=10 years old<BR>\n" );
document.write( "dad is <BR>\n" );
document.write( "x-7=11*3<BR>\n" );
document.write( "x-7+33<BR>\n" );
document.write( "x=33+7<BR>\n" );
document.write( "x=40 years old for the dad now<BR>\n" );
document.write( "proof<BR>\n" );
document.write( "40=4(3+7)<BR>\n" );
document.write( "40=4*10<BR>\n" );
document.write( "40=40<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );