document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1056536>Question 1056536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My sister is 15 years older than I am. The sum of our ages is 31. Find our ages </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #671637 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=671637\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let's call your age x:<BR>\n" );
document.write( "x+x+15 = 31<BR>\n" );
document.write( "2x = 16<BR>\n" );
document.write( "x = 8 you are 8, and your sister<BR>\n" );
document.write( "31-8 = 23 your sister is 23.<BR>\n" );
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document.write( "Check, substitute for x:<BR>\n" );
document.write( "8+8+15 = 31 Correct </SPAN>\n" );
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