document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=315712>Question 315712</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I work this equation?\r<BR>\n" );
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document.write( "2.  Suppose that the length of a rectangle is three cm longer than twice the width and that the perimeter of the rectangle is 90 cm.<BR>\n" );
document.write( "a)	Set up an equation for the perimeter involving only W, the width of the rectangle.<BR>\n" );
document.write( "Answer:  <BR>\n" );
document.write( "b)	Solve this equation algebraically to find the length of the rectangle. Find the width as well.<BR>\n" );
document.write( "	Answer:  Length ______, Width ______<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #225877 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=225877\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The length, L, can be expressed in terms of the width, W, thus:<BR>\n" );
document.write( "1) L = 2W+3 \"...the length ...is 3cm longer than twice the width...\"<BR>\n" );
document.write( "The perimeter of a rectangle is given by:<BR>\n" );
document.write( "2) P = 2L+2W  <BR>\n" );
document.write( "a) Substitute equation 1) for L in equation 2)<BR>\n" );
document.write( "2(2W+3)+2W = P Simplify.<BR>\n" );
document.write( "4W+6+2W = P<BR>\n" );
document.write( "6W+6 = P or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28P+=+6W%2B6%29 ALIGN=MIDDLE  ALT=\"highlight%28P+=+6W%2B6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b)  Substitute P = 90 and solve for W.<BR>\n" );
document.write( "6W+6 = 90 Subtract 6 from both sides.<BR>\n" );
document.write( "6W = 84 Divide both sides by 6.<BR>\n" );
document.write( "W = 14 and...<BR>\n" );
document.write( "L = 2W+3<BR>\n" );
document.write( "L = 2(14)+3<BR>\n" );
document.write( "L = 31<BR>\n" );
document.write( "Length = 31cm.<BR>\n" );
document.write( "Width = 14cm. </SPAN>\n" );
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