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Mathematics, 09.07.2019 01:00 SmokeyRN

Atriangle has a perimeter of 7x-2y+15 and has sides of length 5x+y and 7+x , what is the length of the third side?

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Atriangle has a perimeter of 7x-2y+15 and has sides of length 5x+y and 7+x , what is the length of t...

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