Question

ayudeme por fa
xn–6 + xn–7 – xn–4

Answer 1

Xn-6 +xn-7-Xn-4=
Respuesta= Xn-9

Answer 2

xn - 6 + xn - 7 - xn - 4

solucion:

xn - 6 + xn - 7 - xn - 4 = 0

xn + xn - xn = 6 + 7 + 4

xn = 17