Respuesta :

Answer:

42°

Step-by-step explanation:

3x + 54° = 180° [Supplementary angles]

=> 3x = 180 - 54

=> 3x = 126

[tex] = > x = \frac{126}{3} [/tex]

=> x = 42° (Ans)

Answer:

3x+54= 180(linear pair are supplementary)

3x= 180-54

3x= 126

x= 126/ 3

x= 42°

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