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efectuati:213+6*deschide acolada 40-5*deschide paranteza patrata 94-2*(13+11*3) inchide paranteza patrata inchide acolada

Răspuns :

213+6×{40-5×[94-2×(13+11×3)]}= 213+6×{40-5×[94-2×(13+33)]}= 213+6×[40-5×(94-2×46)]= 213+6×[40-5×(94-92)]= 213+6×(40-5×2)= 213+6×(40-10)= 213+6×30= 213+180=393