Here, x+2x+x=180( sum of angles of a triangle is 180) 4x=180 x=180/4 x=45 x+y=180(linear pair) 45+y=180 y=180-45 y=135 Therefore the value of y=135 and value of x=45
If x=n then it would have 2 solutions because it would be x^2 = c which has a positive and negative solution but idk if that is what you are asking for
