Respuesta :

ALin03
Since angles on both sides are equal, that means the sides are equal as well. Therefore, we can set up an equation and solve for x. 

4x = x + 3
3x = 3
x = 1

Then, we plug x = 1 into x + 3, which gives us the length of segment MN as 4. 
The answer is C.4

Set 4x=x+3 and solve

this results in x=1

substitue one for x in x+3 for MN

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