document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1059553>Question 1059553</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Length of a rectangle is x-3 and width is 5x+4.<BR>\n" );
document.write( "The perimeter of this rectangle is 74cm. Write down an equation for the perimeter. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #674586 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=674586\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Perimeter of  a rectangle is  width+length+width+length (imagine walking around the rectangle, you will see the width twice & length twice), or more simply:  Perimeter = 2(width)+ 2(length) = 2(width+length).\r<BR>\n" );
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document.write( "Length is given as x-3<BR>\n" );
document.write( "Width is given as 5x+4\r<BR>\n" );
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document.write( "We were given perimeter = 74cm:\r<BR>\n" );
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document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+%28%28x-3%29%2B%285x%2B4%29%29+=+74+ ALIGN=MIDDLE  ALT=\"+2+%28%28x-3%29%2B%285x%2B4%29%29+=+74+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x-6%2B10x%2B8+=+74+ ALIGN=MIDDLE  ALT=\"+2x-6%2B10x%2B8+=+74+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12x%2B2+=+74+ ALIGN=MIDDLE  ALT=\"+12x%2B2+=+74+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12x-72+=+0+ ALIGN=MIDDLE  ALT=\"+12x-72+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--<BR>\n" );
document.write( "Answer:<BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12x-72+=+0+ ALIGN=MIDDLE  ALT=\"+12x-72+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "—\r<BR>\n" );
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document.write( "We could solve for x above (x=6), but it is not clear what x represents.<BR>\n" );
document.write( "Let's check the answer using x=6:  length=6-3 = 3,  width = 5*6+4 = 34<BR>\n" );
document.write( "      2*(3+34) = 2*(37) = 74    so at least we have the correct relationship.<BR>\n" );
document.write( "—<BR>\n" );
document.write( "The question was to provide an equation for the perimeter.  Technically, the answer could've been given as   P(x) = 2[(x-3) +(5x+4)] ... simplified to  P(x) = 12x+2  as that is actually more of an expression of the perimeter as a function of x.   In this case, the information that the perimeter=74 is superfluous.<BR>\n" );
document.write( " </SPAN>\n" );
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