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Answer :

Step-by-step explanation:

Apply angle sum of triangle, that means the sum of all interior angles in a triangle is equal to 180°.

So that, (x + 45) + 50° + 90° = 180°.

However when we simply do 45+50+90, the answer is already bigger than 180.

So the question is made wrong.

If you’re solving the equation for X then X = -5