document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=254977>Question 254977</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the value of the variable that is not given.P=a+b+c (perimeter of a triangle); P=12, a=3,c=5. The answer was b=4 but i was not sure how to get to that answer or how to solve it. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #187260 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=187260\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P=a+b+c<BR>\n" );
document.write( "12=3+b+5<BR>\n" );
document.write( "subtract 3 from both sides<BR>\n" );
document.write( "then subtract 5 from both sides <BR>\n" );
document.write( "that is b<BR>\n" );
document.write( " </SPAN>\n" );
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