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Mathematics, 06.10.2021 14:00 aprilstalder

The first side of a triangle is 7 ft more than the third side. The second side is 1 ft shorter than 3 times the third side. If the perimeter of the triangle is 21 ft, find the length of the SECOND side. I repeat find
the length of the SECOND side.

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The first side of a triangle is 7 ft more than the third side. The second side is 1 ft shorter than...
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