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The length of a room is three more than twice the width of the room. The perimeter of the room is 66 feet.
What is the length of the room?
Answer: 23
Explanation:
If x is the width of the room, then 3 + 2x is the length of the room. The perimeter is equal to x + x + (3 + 2x) + (3 + 2x) = 66; 6x + 6 = 66; 6x = 60; x = 10. The length of the room is equal to 2x + 3, 2 × 10 + 3 = 23 feet.
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