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document.write( "The length of a rectangle is 3 inches more than three times the width. The perimeter is 70 inches. Find the length and width.\r
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Algebra.Com's Answer #420515 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! L=3W+3 \n" ); document.write( "P=2L+2W \n" ); document.write( "70=2(3W+3)+2W \n" ); document.write( "70=6W+6+2W \n" ); document.write( "70=8W+6 \n" ); document.write( "8W=70-6 \n" ); document.write( "8W=64 \n" ); document.write( "W=64/8 \n" ); document.write( "W=8 ANS. FOR THE WIDTH. \n" ); document.write( "L=3*8+3 \n" ); document.write( "L=24+3 \n" ); document.write( "L=27 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "70=2*27+2*8 \n" ); document.write( "70=54+16 \n" ); document.write( "70=70 \n" ); document.write( " |