document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148547>Question 148547</A>: <I><SPAN STYLE=\"word-break: break-all;\"> THE SUM OF MR LEE'S AND HIS SON'S AGE IS 49. IN THREE YEARS TIME, HE WILL BE 4 TIMES AS OLD AS HIS SON. FIND THEIR PRESENT AGES </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108884 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=108884\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> THE SUM OF MR LEE'S AND HIS SON'S AGE IS 49. IN THREE YEARS TIME, HE WILL BE 4 TIMES AS OLD AS HIS SON. FIND THEIR PRESENT AGES<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "L = Mr. Lee's age<BR>\n" );
document.write( "S = Son's age<BR>\n" );
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document.write( "S+L = 49<BR>\n" );
document.write( "L+3 = 4*(S+3)<BR>\n" );
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document.write( "Sub for L, L = 49-S<BR>\n" );
document.write( "49-S + 3 = 4*(S+3)<BR>\n" );
document.write( "52-S = 4S+12<BR>\n" );
document.write( "40 = 5S<BR>\n" );
document.write( "S = 8<BR>\n" );
document.write( "----<BR>\n" );
document.write( "L = 49-S<BR>\n" );
document.write( "L = 41<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );