document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=772084>Question 772084</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problems:Mr.Avila is four times as old as his son. In 16 years he will be only twice as old .What are their ages? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #470667 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=470667\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mr.Avila is four times as old as his son.<BR>\n" );
document.write( "A = 4S<BR>\n" );
document.write( "In 16 years he will be only twice as old <BR>\n" );
document.write( "A + 16 = 2(S + 16)<BR>\n" );
document.write( "Replace A with 4S (from 1st equation)<BR>\n" );
document.write( "4S + 16 = 2(S + 16)<BR>\n" );
document.write( "4S + 16 = 2S + 32<BR>\n" );
document.write( "Collect like terms.<BR>\n" );
document.write( "4S - 2S = 32 - 16<BR>\n" );
document.write( "2S = 16<BR>\n" );
document.write( "S = 8<BR>\n" );
document.write( "Therefore, Mr Avila is 32 yrs old<BR>\n" );
document.write( "and his son is 8 years old.<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );