document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157356>Question 1157356</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a certain rectangle is 4 feet greater than the width. If the length is decreased by 3 feet and the width is increased by 5 feet, the area will increased by 21 square feet. What were the dimensions of the rectangle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #780210 by </B><A HREF=/tutors/aboutme.mpl?userid=VFBundy><B>VFBundy(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=VFBundy><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=VFBundy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=780210\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Width = w<BR>\n" );
document.write( "Length = w + 4<BR>\n" );
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document.write( "(w + 5)((w + 4) - 3) = w(w + 4) + 21<BR>\n" );
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document.write( "(w + 5)(w + 1) = w² + 4w + 21<BR>\n" );
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document.write( "w² + 6w + 5 = w² + 4w + 21<BR>\n" );
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document.write( "6w + 5 = 4w + 21<BR>\n" );
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document.write( "2w = 16<BR>\n" );
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document.write( "w = 8<BR>\n" );
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document.write( "Width = w = <b>8</b><BR>\n" );
document.write( "Length = w + 4 = 4 + 8 = <b>12</b> </SPAN>\n" );
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