document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=420411>Question 420411</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I just need to know what mathematical equation to use to find out how old I will be when I'm 3x's older than someone? I was 12 when my little sister was born, and I need to find out how old we will each be when I'm 3x's older than her. Thanks for your help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293777 by </B><A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><B>sudhanshu_kmr(1152)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><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=sudhanshu_kmr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=293777\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "let your age =x and sister age = y\r<BR>\n" );
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document.write( "difference between ages i.e x - y = 12\r<BR>\n" );
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document.write( "( the difference between age of two always remain same)\r<BR>\n" );
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document.write( "and according to question,  x = 3y\r<BR>\n" );
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document.write( "so, 3y -y = 12\r<BR>\n" );
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document.write( "=> 2y = 12\r<BR>\n" );
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document.write( "=> y = 12/2  = 6\r<BR>\n" );
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document.write( "x = 18\r<BR>\n" );
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document.write( "your age = 18, sister age = 6\r<BR>\n" );
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document.write( " </SPAN>\n" );
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