document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113273>Question 113273</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of one of the equal legs of an isosceles triangle is 8cm less than the length of the base. If the perimeter is 29cm, find the length of one of the equal legs. What I have so far is this, 4x+(2x-8)=29cm.\r<BR>\n" );
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document.write( "Thank you for you help,<BR>\n" );
document.write( "Barb Neely </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82426 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=82426\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I don't quite understand how you arrived at: 4x+(2x-8) = 29 cm?<BR>\n" );
document.write( "Let the length of the base be x, then the length of one of the equal sides is x-8.<BR>\n" );
document.write( "So you can express the perimeter of this triangle by: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+=+S%5B1%5D%2BS%5B2%5D%2BS%5B3%5D ALIGN=MIDDLE  ALT=\"P+=+S%5B1%5D%2BS%5B2%5D%2BS%5B3%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "P = (x-8) + (x-8) + x  Simplifying this we get:<BR>\n" );
document.write( "P = 3x-16 but the problem says that this is equal to 29 cm, so...<BR>\n" );
document.write( "29 = 3x-16  Add 16 to both sides.<BR>\n" );
document.write( "45 = 3x  Divide both sides by 3.<BR>\n" );
document.write( "15 = x<BR>\n" );
document.write( "So the base is 15 cm in length.<BR>\n" );
document.write( "The sides are x-8 or 15 - 8 = 7 cm.<BR>\n" );
document.write( "So the answer is 7 cm.<BR>\n" );
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