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Let w be the width, then 2(7 + w) = 42

or 14 + 2w = 42

or 2w = 42 - 14

or 2w = 28

w = 14

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โˆ™ 2012-04-27 18:02:31
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Q: What is the width of a rectangle if length is 7 and perimeter is 42?
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