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Efectueaza:
(256:2+1):3x2-[(64:2+21x1]:3=
6000-{125+[300:100x8+(21x3+63)]}=
13+2x{51-50:[700-(600+11x5)]-40}
Va rog ajutatima!!


Răspuns :

(256:2+1):3x2-[(64:2+21x1)]:3=
(128+1):3x2-[(32+21)]:3=
129:3x2-53:3=
43x2-53:3    nu e corecta  a 2 paranteza rotunda copie exercitiul corect