document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=944706>Question 944706</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jack is 3  times as old as Lacy. 9  years from now the sum of their ages will be 70 . How old are they now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #576012 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=576012\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jack = j<BR>\n" );
document.write( "Lacy = l\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j=3l ALIGN=MIDDLE  ALT=\"j=3l\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28j%2B9%29%2B%28l%2B9%29=70 ALIGN=MIDDLE  ALT=\"%28j%2B9%29%2B%28l%2B9%29=70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "use substitution method<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283l%2Bl%29%2B9%2B9=70 ALIGN=MIDDLE  ALT=\"%283l%2Bl%29%2B9%2B9=70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "add like terms<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284l%29%2B18=70 ALIGN=MIDDLE  ALT=\"%284l%29%2B18=70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "subtract 9<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4l=52 ALIGN=MIDDLE  ALT=\"4l=52\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "divide by 4<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=l=13 ALIGN=MIDDLE  ALT=\"l=13\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "substitute to find j<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j=3%2813%29 ALIGN=MIDDLE  ALT=\"j=3%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j=39 ALIGN=MIDDLE  ALT=\"j=39\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );