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16-01-2019
Mathematics

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The length of a rectangle is -x - 1 and it’s width is 5x+7. Find the perimeter of the rectangle.

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16-01-2019

Answer:

8x+12

Step-by-step explanation:

The perimeter is 2(l+w).

2(-x-1+5x+7)=

2(4x+6)

8x+12 is the answer

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