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Ma ajtati cu 57:7-(5 x 8+44-78)+33= si cu explicati.

Răspuns :

[tex] \frac{57}{7} - (84 - 78) + 33 = \frac{57}{7} - 6 + 33 = \frac{57}{7} + 27 = \frac{57}{7} + \frac{27 \times 7}{7} = \frac{189 + 57}{7} = \frac{246}{7} [/tex]