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Answer :

Debmc7go
123° and the adjacent angle (The one next to it, but inside the triangle) added together equal 180°. 180 - 123 = 57°.

The three angles of a triangle, when added up, equal 180°.

So x + 57 + 92 = 180
x + 149 = 180
x = 31°

let me know if you have any questions
SirJames15go

Answer:

x = 31˚

Step-by-step explanation:

The straight line will always have 180˚.  180 - 123 = 57˚.

A triangle will always have the angles add up to 180˚.  180 - 57 - 92 = 31˚

x = 31˚

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