document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=563572>Question 563572</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Eight years ago, Heather was twice as old as her brother David. Today she is 13 years older than him. How old is she? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #364936 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=364936\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=David's current age;  x-8=David's age 8 years ago<BR>\n" );
document.write( "Then x+13=Heather's current age; x+13-8=x+5=Heather's age 8 years ago<BR>\n" );
document.write( "Soooooo<BR>\n" );
document.write( "x+5=2(x-8)get rid of parens<BR>\n" );
document.write( "x+5=2x-16 subtract 2x and also 5 from each side<BR>\n" );
document.write( "-x=-21<BR>\n" );
document.write( "x=21----David's current age<BR>\n" );
document.write( "x+13=21+13=34----Heather's current age\r<BR>\n" );
document.write( "\n" );
document.write( "CK<BR>\n" );
document.write( "Today: 21+13=34 ok<BR>\n" );
document.write( "8 years ago:  34-8=2(21-8)<BR>\n" );
document.write( "26=2*13  ok\r<BR>\n" );
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document.write( "Hope this helps----ptaylor </SPAN>\n" );
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