document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308672>Question 308672</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A square plywood platform has a perimeter which is 9 times the length of a side, decreased by 15. Find the length of a side. Use the formula P = 4s.<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 #220713 by </B><A HREF=/tutors/aboutme.mpl?userid=CharlesG2><B>CharlesG2(834)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CharlesG2><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=220713\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A square plywood platform has a perimeter which is 9 times the length of a side, decreased by 15. Find the length of a side. Use the formula P = 4s.\r<BR>\n" );
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document.write( "P = 4s = 9s - 15<BR>\n" );
document.write( "     0 = 5s - 15<BR>\n" );
document.write( "    15 = 5s<BR>\n" );
document.write( "     3 =  s<BR>\n" );
document.write( "P = 4s = 4 * 3 = 12<BR>\n" );
document.write( "P = 9s - 15 = 9 * 3 - 15 = 27 - 15 = 12<BR>\n" );
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