A rectangular piece of cardboard has a perimeter of 88 cm. The length of the rectangle is 8 cm longer than three times the width. Find the length and width of the rectangle.

Answer 1

P = 2L + 2W

88 = 2(3W + 8) + 2W

88 = 8W + 16

72 = 8W

9 = W

Answer 2

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