document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773510>Question 773510</A>: <I><SPAN STYLE=\"word-break: break-all;\"> kayla is twice as old as her sister, jenna. four years ago kayla was 3 times jennas age. how old is jenna now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471608 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=471608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> kayla is twice as old as her sister, jenna.<BR>\n" );
document.write( "K = 2J<BR>\n" );
document.write( "four years ago kayla was 3 times jenna's age<BR>\n" );
document.write( "K - 4 = 3(J - 4)<BR>\n" );
document.write( "Replace K with 2J.<BR>\n" );
document.write( "2J - 4 = 3(J - 4)<BR>\n" );
document.write( "2J - 4 = 3J - 12<BR>\n" );
document.write( "Collect like terms.<BR>\n" );
document.write( "2J - 3J = - 12 + 4<BR>\n" );
document.write( "-J = -8<BR>\n" );
document.write( "J = 8<BR>\n" );
document.write( "Jenna is 8 years old<BR>\n" );
document.write( "Kayla is 16 years old.<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );