document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=279272>Question 279272</A>: <I><SPAN STYLE=\"word-break: break-all;\"> john is twice as old as bill. greg is 7 years older than bill. four years ago, the sum of their ages was 55. how old is greg? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #218101 by </B><A HREF=/tutors/aboutme.mpl?userid=JBarnum><B>JBarnum(2146)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JBarnum><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=JBarnum><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=218101\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> John, Bill, Greg<BR>\n" );
document.write( "J=2B<BR>\n" );
document.write( "G=7+B<BR>\n" );
document.write( "J-4+B-4+G-4=55<BR>\n" );
document.write( "J+B+G=67<BR>\n" );
document.write( "2B+B+7+B=67<BR>\n" );
document.write( "4B=60<BR>\n" );
document.write( "B=15<BR>\n" );
document.write( "J=30<BR>\n" );
document.write( "G=22\r<BR>\n" );
document.write( "\n" );
document.write( "checking<BR>\n" );
document.write( "30+15+22=67<BR>\n" );
document.write( "67=67<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );