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Please Help!!!!!!!!!!!!!

Please Help!!!!!!!!!!!!!-example-1

1 Answer

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Answer:

15

Explanation:

since angles 84 and 5x + 9 are alternate interior angles they both are equal

i.e

5x +9 = 84

5x = 84 -9

5x = 75

x = 75/5

therefore x = 15

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