The length of a rectangle is 5m more than twice the width. The perimeter is 34m. Calculate the length and width of the rectangle
L =2 w + 5
2 L + 2 w = 34
L + w = 17 so L = 17-w
17 - w = 2 w + 5
3 w = 12
w =4
so L = 1-4 = 13
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check
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13 - 2*4 = 5
8 + 26 = 34 We win!