document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=102022>Question 102022</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the formula for the specified variable.<BR>\n" );
document.write( "16)   P = 2L + 2W for L </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #74164 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=74164\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given:<BR>\n" );
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document.write( "P = 2L + 2W<BR>\n" );
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document.write( "This is to be solved for L<BR>\n" );
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document.write( "To do this, you must first get the term containing L separated on one side of the equation and<BR>\n" );
document.write( "everything else on the other side of the equation. Notice that on the right side of the <BR>\n" );
document.write( "given equation that the term containing L is not by itself. There is also a term that contains<BR>\n" );
document.write( "the variable W. We need to get rid of that term with the W.  You can do this by subtracting<BR>\n" );
document.write( "2W from the right side. But whenever you do something such as this to one side of the equation<BR>\n" );
document.write( "you must also do the same thing to the other side of the equation to keep the equation in<BR>\n" );
document.write( "balance. <BR>\n" );
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document.write( "So in this problem if we subtract 2W from the right side, we must also subtract 2W from the<BR>\n" );
document.write( "left side. By subtracting 2W from the right side, we make the 2W disappear from the right<BR>\n" );
document.write( "side. And by subtracting 2W from the left side, we make a -2W appear on the left side. Therefore,<BR>\n" );
document.write( "the subtraction of 2W from both sides results in the given equation becoming:<BR>\n" );
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document.write( "P - 2W = 2L<BR>\n" );
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document.write( "This tells us what two times L equals ... it equals P - 2W. Since we need to know what <BR>\n" );
document.write( "L is we can do that by dividing the right side by 2. That will make the right side become<BR>\n" );
document.write( "L. But since we divide the right side by 2 we also must divide the entire left side (all<BR>\n" );
document.write( "terms) by 2. This leads to the answer:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28P+-+2W%29%2F2+=+L ALIGN=MIDDLE  ALT=\"%28P+-+2W%29%2F2+=+L\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "If you prefer, you can transpose this equation ... put the left side on the right side<BR>\n" );
document.write( "and put the right side on the left side ... and you can do this without any mathematical<BR>\n" );
document.write( "changes. This puts the equation into a little more \"standard\" form with the variable that<BR>\n" );
document.write( "you have solved for on the left side, and all the other variables on the right side. In<BR>\n" );
document.write( "this form the answer is:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+%28P+-+2W%29%2F2 ALIGN=MIDDLE  ALT=\"L+=+%28P+-+2W%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Hope this helps you to get the basic idea of how to solve an equation for one of the variables<BR>\n" );
document.write( "in terms of the other variables.<BR>\n" );
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