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

I'm really bad at math... help please ):-example-1
User LeMoussel
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1 Answer

7 votes
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.
User Greg Ennis
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5.6k points