Question 1063445
Rover spends most of his time in a yard fenced by 54 meters of fencing. One side is 3 meters less than twice the length of the other. What are the dimensions of rovers yard?
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P = 2L + 2W = 54
L + W = 27
L = 2W-3
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2W-3 + W = 27
etc
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PS  If you don't like a dog in the house with you, don't get a dog.
Dogs are social animals.  Getting just 1 dog and putting it outside is animal cruelty.