document.write( "Question 321612: The perimeter of a rectangular field is P feet. The width of the field is 200 feet less than its length. In terms of P, what is the length of the field in feet? \n" ); document.write( "
Algebra.Com's Answer #230297 by mananth(16946)\"\" \"About 
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let length be x feet
\n" ); document.write( "width is x-200 feet
\n" ); document.write( "..
\n" ); document.write( "Perimeter = 2L +2W
\n" ); document.write( "P=2x+2(x-200)
\n" ); document.write( "P=2x+2x-400
\n" ); document.write( "P=4x-400
\n" ); document.write( "P+400=4x
\n" ); document.write( "P+400 /4 = x
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