document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=97264>Question 97264</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mark is 11 years older than his sister.  In 8 years, he will be twice as old as she will be then.  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 #70788 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=70788\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mark is 11 years older than his sister. In 8 years, he will be twice as old as she will be then. How old are they now?<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "NOW DATA:<BR>\n" );
document.write( "Let sister be \"x\" yrs. old <BR>\n" );
document.write( "Mark is \"x+11\" yrs old<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "In 8 yrs DATA:<BR>\n" );
document.write( "Sister will be \"x+8\" yrs old<BR>\n" );
document.write( "Mark will be x+11+8 = \"x+19\" yrs old\r<BR>\n" );
document.write( "\n" );
document.write( "--------------------<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "Mark = 2*Sister<BR>\n" );
document.write( "x+19 = 2(x+8)<BR>\n" );
document.write( "x+19 = 2x+16<BR>\n" );
document.write( "x = 3 (Sister's age NOW)<BR>\n" );
document.write( "x+11 = 14 (Mark's age NOW)\r<BR>\n" );
document.write( "\n" );
document.write( "---------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );