document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=876577>Question 876577</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 5 YEARS AGO A MAN 7 TIMES AS OLD AS HIS SON.AFTER 5 YEARS HE WILL BE THRICE AS OLD AS HIS SON.FIND THEIR PRESENT AGE<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #528873 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=528873\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+ ALIGN=MIDDLE  ALT=\"+f+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = father's age now<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+ ALIGN=MIDDLE  ALT=\"+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = son's age now<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+-+5+ ALIGN=MIDDLE  ALT=\"+f+-+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = father's age 5 yrs ago<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+-+5+ ALIGN=MIDDLE  ALT=\"+s+-+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = son's age 5 yrs ago<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+%2B+5+ ALIGN=MIDDLE  ALT=\"+f+%2B+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = father's age in 5 yrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+%2B+5+ ALIGN=MIDDLE  ALT=\"+s+%2B+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = son's age in 5 yrs<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+-+5+=+7%2A%28+s+-+5+%29+ ALIGN=MIDDLE  ALT=\"+f+-+5+=+7%2A%28+s+-+5+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+%2B+5+=+3%2A%28+s+%2B+5+%29+ ALIGN=MIDDLE  ALT=\"+f+%2B+5+=+3%2A%28+s+%2B+5+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+-+5+=+7s+-+35+ ALIGN=MIDDLE  ALT=\"+f+-+5+=+7s+-+35+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+7s+-+f+=+30+ ALIGN=MIDDLE  ALT=\"+7s+-+f+=+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+%2B+5+=+3s+%2B+15+ ALIGN=MIDDLE  ALT=\"+f+%2B+5+=+3s+%2B+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3s+-+f+=+-10+ ALIGN=MIDDLE  ALT=\"+3s+-+f+=+-10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Subtract (2) from (1)<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+7s+-+f+=+30+ ALIGN=MIDDLE  ALT=\"+7s+-+f+=+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-3s+%2B+f+=+10+ ALIGN=MIDDLE  ALT=\"+-3s+%2B+f+=+10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4s+=+40+ ALIGN=MIDDLE  ALT=\"+4s+=+40+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+=+10 ALIGN=MIDDLE  ALT=\"+s+=+10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+-+5+=+7%2A%28+s+-+5+%29+ ALIGN=MIDDLE  ALT=\"+f+-+5+=+7%2A%28+s+-+5+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+-+5+=+7%2A%28+10+-+5+%29+ ALIGN=MIDDLE  ALT=\"+f+-+5+=+7%2A%28+10+-+5+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+-+5+=+7%2A5+ ALIGN=MIDDLE  ALT=\"+f+-+5+=+7%2A5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f+=+40+ ALIGN=MIDDLE  ALT=\"+f+=+40+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The father is 40 and the son is 10<BR>\n" );
document.write( "This checks out if you read back<BR>\n" );
document.write( "through the problem\r<BR>\n" );
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