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{[(76*a-8):4-96]*3-72}:45=2
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Răspuns :

  1. {[(76×a-8)÷4-96]×3-72}÷45=2 [(76×a-8)÷4-96]×3-72=45×2=90 [(76×a-8)÷4-96]×3=90+72=162 (76×a-8)÷4-96=162÷3=54 (76×a-8)÷4=54+96=150 76×a-8=150×4=600 76×a=600+8=608 a=608÷76 =8