Răspuns:
Salutare!
13+{67+8×[2 879-13×(2 184:56×9-97×9:3)]}:23=
13+{67+8×[2 879-13×(39×9-873:3)]}:23=
13+{67+8×[2 879-13×(351-291)]}:23=
13+[67+8×(2 879-13×60)]:23=
13+[67+8×(2 879-780)]:2=
13+(67+8×2 099):23=
13+(67+16 792):23=
13+16 859:23=
13+733=
746
Baftă!
