document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1191756>Question 1191756</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ABCD is an isosceles trapezoid with bases AB̅̅̅̅ and DC̅̅̅̅, and median EF̅̅̅̅.\r<BR>\n" );
document.write( "\n" );
document.write( "If AC = 4y  -  9 and DB = y + 12, what is the value of y? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #823596 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13203)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=823596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "AC and BD are the diagonals of the trapezoid.<br><BR>\n" );
document.write( "In an isosceles trapezoid, the lengths of the two medians are equal.<br><BR>\n" );
document.write( "4y-9 = y+12<br><BR>\n" );
document.write( "Solve using basic algebra.<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );