Respuesta :

emb58

Answer:

6

Step-by-step explanation:

(11x-3)+(7x+5)+(13x-8)=180

31x-6=180

31x=186

x=6

(11x-3)+(13x-8)+(7x+5)=180
11x-3+13x-8+7x+5=180
31x=180-5+8+3
31x=191-5
31x=186
x=186/31
x=6