Question

Porfavor, diganme cuanto es:
x-(y+z)-{z-(y-x)+y-[x+(y-z)]}

Answer 1

Respuesta:

x-(y+z)-{z-(y-x)+y-[x+(y-z)]}

x-y-z-{z-y+x+y-[x+y-z]}

x-y-z-{z+x-x-y+z}

x-z-z-z

x-3z