document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=578117>Question 578117</A>: <I><SPAN STYLE=\"word-break: break-all;\"> in fifteen barnie will be fourtimes as old as she was nine years ago.how old is she now.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #370590 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=370590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In fifteen years, Barnie will be four times as old as she was nine years ago.<BR>\n" );
document.write( "how old is she now.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let a = her age now<BR>\n" );
document.write( ":<BR>\n" );
document.write( "a + 15 = 4(a - 9)<BR>\n" );
document.write( "a + 15 = 4a - 36<BR>\n" );
document.write( "15 + 36 = 4a - a<BR>\n" );
document.write( "51 = 3a<BR>\n" );
document.write( "a = 51/3<BR>\n" );
document.write( "a = 17 yrs is her age now<BR>\n" );
document.write( ";<BR>\n" );
document.write( ":<BR>\n" );
document.write( "See if that checks out:<BR>\n" );
document.write( "17 + 15 = 4(17-9)<BR>\n" );
document.write( "32 = 4(8); looks right, doesn't it.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );