document.write( "Question 359774: The perimeter of a rectangle is 40.
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document.write( "If the width is 3x-8 and the length 2x + 3 what is x? \n" );
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Algebra.Com's Answer #256753 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! W=3x-8 \n" ); document.write( "L=2x + 3 \n" ); document.write( "2L+2W=40 \n" ); document.write( "2(2X+3)+2(3X-8)=40 \n" ); document.write( "4X+6+6X-16=40 \n" ); document.write( "10X=40-6+16 \n" ); document.write( "10X=50 \n" ); document.write( "X=50/10 \n" ); document.write( "X=5 SOLUTION. \n" ); document.write( "W=3*5-8=15-8=7 ANS. \n" ); document.write( "L=2*5+3=10+3=13 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "2*13+2*7=40 \n" ); document.write( "26+14=40 \n" ); document.write( "40=40 \n" ); document.write( " |