document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=824187>Question 824187</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangular field is 50 feet less than its width, if the perimeter of the field is 840 feet, find the length of the field show your work </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #496159 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=496159\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ---<BR>\n" );
document.write( "x = y - 50<BR>\n" );
document.write( "2x + 2y = 840<BR>\n" );
document.write( "---<BR>\n" );
document.write( "put the system of linear equations into standard form<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x - y = -50<BR>\n" );
document.write( "2x + 2y = 840<BR>\n" );
document.write( "---<BR>\n" );
document.write( "copy and paste the above standard form linear equations in to this (matrix method) solver:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "answer1:<BR>\n" );
document.write( "x= length = 185 ft<BR>\n" );
document.write( "y= width = 235 ft<BR>\n" );
document.write( "---<BR>\n" );
document.write( "---<BR>\n" );
document.write( "now solve by substitution:<BR>\n" );
document.write( "---<BR>\n" );
document.write( "2x + 2y = 840<BR>\n" );
document.write( "2(y - 50) + 2y = 840<BR>\n" );
document.write( "2y - 100 + 2y = 840<BR>\n" );
document.write( "4y = 940<BR>\n" );
document.write( "y = 235<BR>\n" );
document.write( "x = 235 - 50<BR>\n" );
document.write( "x = 185<BR>\n" );
document.write( "---<BR>\n" );
document.write( "answer2:<BR>\n" );
document.write( "x= length = 185 ft<BR>\n" );
document.write( "y= width = 235 ft<BR>\n" );
document.write( "NOTE: matrix and substitution methods yield the same result<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve systems of linear equations up to 6-equations 6-variables:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );