document.write( "Question 359774: The perimeter of a rectangle is 40.
\n" ); document.write( "If the width is 3x-8 and the length 2x + 3 what is x?
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Algebra.Com's Answer #256753 by checkley77(12844)\"\" \"About 
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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
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