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((20+3 *14)*5-6*5)*2-400

Răspuns :

[(20+42)*5-30]*2-400=(62*5-30)*2-400=(310-30)*2-400= 280*2-400= 560-400=160
((20 + 42)*5 - 30) *2 -400 = (62*5-30)*2-400 =(310-30)*2-400=560-400=160