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One side of a triangle is one-third the longest side. The third side is 13 feet less than the longest side. The perimeter is 85. Find all three sides.

 Jul 28, 2021
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x + x-13 + 1/3 x = 85

7/3 x = 98

1/3x = 14

x = 42

x-13 = 29

1/3 x = 14

(42,29,14)

 Jul 28, 2021

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