document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1198386>Question 1198386</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Thirteen years from now, David will be twice as old as Joanna. the current sum of the ages of David and Joanna is 19. How old is Joanna now?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #831962 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=831962\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28d%2B13=2%28j%2B13%29%2Cd%2Bj=19%29 ALIGN=MIDDLE  ALT=\"system%28d%2B13=2%28j%2B13%29%2Cd%2Bj=19%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Question asks for j.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=19-j ALIGN=MIDDLE  ALT=\"d=19-j\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Substituting, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2819-j%29%2B13=2%28j%2B13%29 ALIGN=MIDDLE  ALT=\"%2819-j%29%2B13=2%28j%2B13%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( ".\r<BR>\n" );
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document.write( ". </SPAN>\n" );
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