document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=495698>Question 495698</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this question. I dont even know where to start.<BR>\n" );
document.write( "Thank you for your time and help\r<BR>\n" );
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document.write( "the area of a rectangular wall of a barn is 120 sq ft. its length is 8ft longer than twice its width. find the length an width of the wall of the barn. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #336151 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=336151\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area of a rectangle = Length * Width<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+area ALIGN=MIDDLE  ALT=\"A+=+area\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+120 ALIGN=MIDDLE  ALT=\"A+=+120\"   DISABLED_style= \"max-width:90%; height:auto;\" >  (given)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+length ALIGN=MIDDLE  ALT=\"L+=+length\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W+=+width ALIGN=MIDDLE  ALT=\"W+=+width\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "Length is 8 ft greater than twice the width. (given)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+2W+%2B+8%0D%0A.%0D%0AWhat+are+the+length+and+width%3F%0D%0A.%0D%0A%7B%7B%7BL%2AW+=+A ALIGN=MIDDLE  ALT=\"L+=+2W+%2B+8%0D%0A.%0D%0AWhat+are+the+length+and+width%3F%0D%0A.%0D%0A%7B%7B%7BL%2AW+=+A\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2AW+=+120 ALIGN=MIDDLE  ALT=\"L%2AW+=+120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute for L <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282W%2B8%29%2AW+=+120 ALIGN=MIDDLE  ALT=\"%282W%2B8%29%2AW+=+120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2W%5E2+%2B+8W+=+120 ALIGN=MIDDLE  ALT=\"2W%5E2+%2B+8W+=+120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Subtract 120 from both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2W%5E2+%2B+8W+-+120+=+0 ALIGN=MIDDLE  ALT=\"2W%5E2+%2B+8W+-+120+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide by 2 to eliminate the coefficient on W^2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W%5E2+%2B+4W+-+60+=+0 ALIGN=MIDDLE  ALT=\"W%5E2+%2B+4W+-+60+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Factor<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28W+%2B10%29%28W+-6%29+=+0 ALIGN=MIDDLE  ALT=\"%28W+%2B10%29%28W+-6%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the width is either -10 or 6.<BR>\n" );
document.write( "A negative width is nonsense, so we decide:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W+=+6 ALIGN=MIDDLE  ALT=\"W+=+6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "Substitute for W<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2A6+=+120 ALIGN=MIDDLE  ALT=\"L%2A6+=+120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Divide both sides by 6<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+20 ALIGN=MIDDLE  ALT=\"L+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "ALWAYS check your work.<BR>\n" );
document.write( "In this case, you cannot use the area to check because you used it to solve for L.<BR>\n" );
document.write( "Looking back you can find:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+2W+%2B+8 ALIGN=MIDDLE  ALT=\"L+=+2W+%2B+8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2W+%2B+8+=+2%286%29+%2B+8 ALIGN=MIDDLE  ALT=\"2W+%2B+8+=+2%286%29+%2B+8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2W+%2B+8+=+20 ALIGN=MIDDLE  ALT=\"2W+%2B+8+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Correct.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Answer:<BR>\n" );
document.write( "Length = 20 ft.<BR>\n" );
document.write( "Width = 6 ft.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Done\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );