document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=829889>Question 829889</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have two sister. I am tree times older than one of my sisters and six years older than the other sister.If one of my sisters is half the age of the  other sister,how old am I? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500679 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=500679\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let a = The speaker's age.<BR>\n" );
document.write( "let b = one sister's age<BR>\n" );
document.write( "let c = the other sister's age<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Write an equation for each statement<BR>\n" );
document.write( ":<BR>\n" );
document.write( "I have two sisters.<BR>\n" );
document.write( " I am three times older than one of my sisters,<BR>\n" );
document.write( "a = 3b<BR>\n" );
document.write( " and six years older than the other sister.<BR>\n" );
document.write( "a = c+6<BR>\n" );
document.write( " If one of my sisters is half the age of the other sister,<BR>\n" );
document.write( "b = .5c<BR>\n" );
document.write( " how old am I?<BR>\n" );
document.write( ";<BR>\n" );
document.write( "From the first two equations; a = a, therefore<BR>\n" );
document.write( "3b = c+6<BR>\n" );
document.write( "replace b with .5c<BR>\n" );
document.write( "3(.5c) = c + 6<BR>\n" );
document.write( "1.5c = c + 6<BR>\n" );
document.write( "1.5c - c = 6<BR>\n" );
document.write( ".5c = 6<BR>\n" );
document.write( "c = 12<BR>\n" );
document.write( "then <BR>\n" );
document.write( "a = 12 + 6<BR>\n" );
document.write( "a = 18 yrs old <BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check this by finding the age of the other sister<BR>\n" );
document.write( "b = .5(12)<BR>\n" );
document.write( "b = 6<BR>\n" );
document.write( "and<BR>\n" );
document.write( "a = 3(6) = 18<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );