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[(4+a÷3)÷12+5]×4-26=42​

Răspuns :

asta e, daca nu intelegi ceva sa imi spui :)
Vezi imaginea CARLAELENACEB

Răspuns:

[(4+a÷3)÷12+5]×4= 42+26

[(4+a÷3)÷12+5]×4= 68

[(4+a÷3)÷12+5]= 68÷4= 17

(4+a÷3)÷12= 17-5= 12

4+a÷3= 12×12= 144

a÷3= 144-4= 140

a= 140×3

a= 420