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calculeaza. 800-[(100+100/10)x2]+(200+120/2-0)=

Răspuns :

800-[(100+100/10)x2]+(200+120/2-0)=800-[(100+10)x2]+(200+60-0)=800-[110x2]+(260-0)=800-220+260=580+260=840