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26-05-2018
Mathematics

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I'm really bad at math... help please ):

Im really bad at math help please class=

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26-05-2018

4x - 9 = 2x + 15
2x = 24
x = 12

2(12) + 15
24 + 15
39

The missing measure is 39. Now we add them up for the perimeter.

26 + 17 + 39
43 + 39
82

Option D is your answer.

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