document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1100456>Question 1100456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Marie is 10 years older and her sister, Sarah, is 8 years old. How many years ago was Marie twice as old as Sarah was then?\r<BR>\n" );
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document.write( "We know that Marie is now 18 years old but is it asking how many years ago Marie was twice as old as Sarah was at age 8? Or just twice her age? Not sure how we would put this into an equation. This is for third grade math!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #714949 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=714949\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We know Sarah is 8, and Marie is 18. Let n be the number of years ago since Marie was twice Sarahs' age. Then:<BR>\n" );
document.write( "18-n=2(8-n)<BR>\n" );
document.write( "18-n=16-2n<BR>\n" );
document.write( "-n=2<BR>\n" );
document.write( "n=-2<BR>\n" );
document.write( "-(-2)=+2<BR>\n" );
document.write( "Marie will not be twice as old as Sarah for another 2 years<BR>\n" );
document.write( "&#9786;&#9786;&#9786;&#9786; </SPAN>\n" );
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