document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1110639>Question 1110639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An older person is 7 years older than four times the age of a younger person. The sum of their ages is 17. Find their ages. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #725628 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=725628\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Older: o<BR>\n" );
document.write( "Younger: y<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "o + y = 17 subtract y from both sides:<BR>\n" );
document.write( "o = 17 - y<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "o = 4y + 7 substitute for o in the original equation above:<BR>\n" );
document.write( "4y + 7 + y = 17<BR>\n" );
document.write( "5y = 10<BR>\n" );
document.write( "y = 2<BR>\n" );
document.write( "o = 17 - y = 17 - 2 = 15 <BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "O = 4y + 7<BR>\n" );
document.write( "o = 4(2) + 7 <BR>\n" );
document.write( "o = 8 + 7 = 15 correct.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );