document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=123815>Question 123815</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 45 cows and chickens in the farmyard. One qiet afternoon, Jack counted and found that there were 106 legs in all. How many cows and 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 #90832 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=90832\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = number of cows  (4 legs each)<BR>\n" );
document.write( "y= number of chickens   (2 legs each)\r<BR>\n" );
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document.write( "x+y=45<BR>\n" );
document.write( "4x+2y=106\r<BR>\n" );
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document.write( "Solve the system by multiplying first equation by -2:\r<BR>\n" );
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document.write( "-2x-2y=-90<BR>\n" );
document.write( "4x+2y=106\r<BR>\n" );
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document.write( "Add the equations together:<BR>\n" );
document.write( "2x=16<BR>\n" );
document.write( "x= 8 cows<BR>\n" );
document.write( "45-8=37 chickens\r<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "4*8+2*37<BR>\n" );
document.write( "32+74=106 total legs\r<BR>\n" );
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document.write( "R^2<BR>\n" );
document.write( " </SPAN>\n" );
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