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Let the length of the rectangle be 2x+3 and the width be x

So: 2(2x+3+x) = 78 => 4x+6+2x = 78 => 6x = 78-6 => 6x = 72 => x = 12

Therefore: length = 27 cm

Check for perimeter: 2(27+12) = 78 cm

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Q: What is The length of a rectangle is three centimeters more than twice the width. The perimeter is 78 centimeters?
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