document.write( "Question 907900: The perimeter of a rectangle is 56m. If the width were doubled and the length were increased by 25m, the perimeter would be 128m. What are the length and width of the rectangle.
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Algebra.Com's Answer #550719 by josgarithmetic(39617)\"\" \"About 
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w width, L length\r
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\n" ); document.write( "\n" ); document.write( "\"2w%2B2L=56\", becomes \"w%2BL=28\";\r
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\n" ); document.write( "\n" ); document.write( "\"2%282w%29%2B2%28L%2B25%29=128\"
\n" ); document.write( "\"4w%2B2L%2B50=128\"
\n" ); document.write( "\"2w%2BL=%28128-50%29%2F2\"
\n" ); document.write( "\"2w%2BL=39\";\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28system%28w%2BL=28%2C2w%2BL=39%29%29\"
\n" ); document.write( "Two linear equations in two unknowns.
\n" ); document.write( "Solve the system.
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