[29+3×9-13:13-50:(7+3)]:(9-6:3+43)

Răspuns :

[29+27-1-50:(7+3)]-(9-2+43)= [29+27-1-50:10]:(7+43)= [29+27-1-5]:50= (56-1-5):50= (55-5):50= 50:50= =1
(29+27-1-50:10):(7+43)=
(29+27-1-5):50=
50:50=1