document.write( "Question 661495: the length of a rectangle is 3 less than twice the width the perimeter is 30cm what is the length and width?
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Algebra.Com's Answer #411639 by ReadingBoosters(3246)\"\" \"About 
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p = 2(l+w) = 2l+2w = 30
\n" ); document.write( "l = 2w - 3
\n" ); document.write( "Substitute l into the perimeter equation
\n" ); document.write( "2(2w-3)+2w = 30
\n" ); document.write( "Distribute the 2
\n" ); document.write( "4w - 6 + 2w = 30
\n" ); document.write( "Combine like terms
\n" ); document.write( "6w = 30 + 6
\n" ); document.write( "6w=36
\n" ); document.write( "6w/6 = 36/6
\n" ); document.write( "w = 6
\n" ); document.write( "l = 2(6) - = 9
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