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11-01-2020
Mathematics

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Аноним Аноним

11-01-2020

Answer:

x=11

Step-by-step explanation:

First, we notoce that the angles has to be 90 degrees because the other angle is also 90 and these angles have to add up to 180. So, that means 7x+13=90

-13 -13

7x=77

x=11

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