document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=856776>Question 856776</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Danny's father is 4 times as old as Danny. Five years ago, Danny's father was 5 times older. How old is Danny?<BR>\n" );
document.write( "I have guessed the answer correct but would like to be shown how to work it out, using the correct method. Thankyou. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #516142 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=516142\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Danny's father is 4 times as old as Danny. Five years ago, Danny's father was 5 times older. How old is Danny?<BR>\n" );
document.write( "I have guessed the answer correct but would like to be shown how to work it out, using the correct method. <BR>\n" );
document.write( "***<BR>\n" );
document.write( "at present:<BR>\n" );
document.write( "let x=Danny's age<BR>\n" );
document.write( "4x=Father's age<BR>\n" );
document.write( "..<BR>\n" );
document.write( "5 yrs ago<BR>\n" );
document.write( "x-5=Danny's age<BR>\n" );
document.write( "4x-5=Father's age<BR>\n" );
document.write( "..<BR>\n" );
document.write( "4x-5=5(x-5)<BR>\n" );
document.write( "4x-5=5x-25<BR>\n" );
document.write( "x=20<BR>\n" );
document.write( "How old is Danny? 20<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );