Respuesta :
n in (-oo:+oo)
n/10+8 = 11 // - 11
n/10-11+8 = 0
1/10*n-3 = 0 // + 3
1/10*n = 3 // : 1/10
n = 3/1/10
n = 30
n = 30
n/10+8 = 11 // - 11
n/10-11+8 = 0
1/10*n-3 = 0 // + 3
1/10*n = 3 // : 1/10
n = 3/1/10
n = 30
n = 30