document.write( "Question 681983: the perimeter of a rectangle is 48 inches.The length is 6 inches greater than the width.Define the variables,and write equaations to represent this situation.solve the system by substitution \n" ); document.write( "
Algebra.Com's Answer #422961 by tsewaitung(11)\"\" \"About 
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let the length be x and the width be y.
\n" ); document.write( "from the question, we have
\n" ); document.write( "2(x+y)=48
\n" ); document.write( "x=y+6
\n" ); document.write( "by substituting the second equaation into the first equaation, we have
\n" ); document.write( "2[(y+6)+y)=48
\n" ); document.write( " 2[y+6+y]=48
\n" ); document.write( " 2[2y+6]=48
\n" ); document.write( " 4[y+3]=48
\n" ); document.write( " y+3=12
\n" ); document.write( " \"y=9\"
\n" ); document.write( "by substituting y=9 into the second equaation, we have
\n" ); document.write( " x=9+6
\n" ); document.write( "\"x=15\"\r
\n" ); document.write( "\n" ); document.write( "the length of the rectangle is 15 inches and the width of the rectangle is 9 inches.
\n" ); document.write( " \n" ); document.write( "
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