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2 (x + 2x) = 42

x + 2x = 21

3x = 21

Therefore, x = 7

The width of the rectangle is 7 inches. The length of the rectangle is 14 inches.

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โˆ™ 2010-06-12 00:59:25
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Q: If the length of a rectangle is twice the width the perimeter is 42 inches what is the width?
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