9+{9+9×[9+9×(9-9:3)]}

Răspuns :

9+{9+9×[9+9×(9-9:3)]}
9+{9+9×[9+9×6]}
9+{9+9×63}
9+576
585
9+{9+9x[9+9x(9-9:3)]}=
=9+{9+9x[9+9x(9-3)]}
=9+[9+9x(9+9x6)]
=9+[9+9x(9+54)]
=9+(9+9x63)
=9+(9+567)
=9+576
=585