document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=703427>Question 703427</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi. I don't know how to set this up and solve it. Thank you.\r<BR>\n" );
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document.write( "There are 38 animals in a farmyard. Some are cows and some are chickens. In total there are 104 legs. How many chickens are there?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433505 by </B><A HREF=/tutors/aboutme.mpl?userid=mouk><B>mouk(232)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mouk><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=mouk><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=433505\">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=H ALIGN=MIDDLE  ALT=\"H\"   DISABLED_style= \"max-width:90%; height:auto;\" >=number of chickens<BR>\n" );
document.write( "and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C ALIGN=MIDDLE  ALT=\"C\"   DISABLED_style= \"max-width:90%; height:auto;\" >=number of cows\r<BR>\n" );
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document.write( "\"There are 38 animals in a farmyard\":<BR>\n" );
document.write( "so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+C+%2B+H=38+ ALIGN=MIDDLE  ALT=\"+C+%2B+H=38+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "\"In total there are 104 legs\":<BR>\n" );
document.write( "Chickens have two legs, cows have 4 legs<BR>\n" );
document.write( "so, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2H%2B4C=104 ALIGN=MIDDLE  ALT=\"2H%2B4C=104\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=H%2B2C=52 ALIGN=MIDDLE  ALT=\"H%2B2C=52\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "But from 1st equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=38-H ALIGN=MIDDLE  ALT=\"C=38-H\"   DISABLED_style= \"max-width:90%; height:auto;\" > so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2C=76-2H ALIGN=MIDDLE  ALT=\"2C=76-2H\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "substituting for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2C ALIGN=MIDDLE  ALT=\"2C\"   DISABLED_style= \"max-width:90%; height:auto;\" > in 2nd equation gives:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=H%2B%2876-2H%29=52 ALIGN=MIDDLE  ALT=\"H%2B%2876-2H%29=52\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=76-H=52 ALIGN=MIDDLE  ALT=\"76-H=52\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=H=76-52=24 ALIGN=MIDDLE  ALT=\"H=76-52=24\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So there are 24 chicken (and 14 cows) </SPAN>\n" );
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