document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=292632>Question 292632</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. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211352 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=211352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P=4s<BR>\n" );
document.write( "9s-15=4s<BR>\n" );
document.write( "9s-4s=15<BR>\n" );
document.write( "5s=15<BR>\n" );
document.write( "s=15/5<BR>\n" );
document.write( "s=3 ans. for the length of the side.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "9*3-15=4*3<BR>\n" );
document.write( "27-15=12<BR>\n" );
document.write( "12=12<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );