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A triangle has side with the lengths 8x + 6, 5x -5 and -6x + 12. What is the perimeter of the triangle? If you could tell how you did this, please do. I would like to know so I don't keep making this mistake.
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A triangle has side with the lengths 8x + 6, 5x -5 and -6x + 12. What is the perimeter of the triangle?

If you could tell how you did this, please do. I would like to know so I don't keep making this mistake...

User Sincere
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To find the perimeter you have to combine like terms. 8x + 5x - 6x is 7x and 6 - 5 + 12 is 13 so the perimeter of the triangle is 7x + 13
User Joseph Young
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