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A rectangle has a perimeter of 20 cm. The length of the rectangle is 1 more than twice the width. What is the measurement of the length and width of the rectangle?

2 answers

P = 2L + 2W

20 = 2(2W + 1) + 2W

20 = 6W + 2

18 = 6W

3 = W

how did you substitute?

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