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Ik it’s x=9 but can someone explain to me how they got that ?

Ik it’s x=9 but can someone explain to me how they got that ?-example-1

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the square on the angle shows that it is a 90 degree angle. The known angle is 46 degrees. 90 - 46 would be 44

So 44=5x-1

Add 1 to each side

45=5x

now just divide each side by five making it

9=x

Hope this helped!

User Headwinds
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