document.write( "Question 895757: The length of a rectangular room is 3m more than 2 times its width. If the perimeter is 30 m, how wide is the room?\r
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Algebra.Com's Answer #542995 by MathTherapy(10552) $\"\"$ $\"About$

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The length of a rectangular room is 3m more than 2 times its width. If the perimeter is 30 m, how wide is the room?\r
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document.write( "Let width be W
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document.write( "Then length, or L = 2W + 3 ----- eq (i)
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document.write( "Since 2(W + L) = perimeter, then: 2(W + L) = 30____2(W + L) = 2(15)_____W + L = 15 ------- eq (ii)
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document.write( "W + 2W + 3 = 15 ------- Substituting 2W + 3 for L in eq (ii)
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document.write( "3W + 3 = 15
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document.write( "3W = 12
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document.write( "W, or width = , or  m
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