Respuesta :

Answer: wrong question

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

57+ (4x+4) + (7x+9) = 180

(4x+4) + (7x+9) = 180-57

(4x+4) + (7x+9) = 123

4x+4 + 7x+9 = 123

4x+7x + 4+9 = 123

11x+13=123

11x=123-13

11x=110

x=110/11

x=10