1)340*×-416*2=18208 2)(223440-130*×): 35=6020 3)(31*550-×)*120=10200 - вопрос №50948501340416218208222344013035602033155012010200 от AlinaWinter2015 27.06.2020 15:22

Question

Математика: 1)340*×-416*2=18208 2)(223440-130*×): 35=6020 3)(31*550-×)*120=10200

AlinaWinter2015 · Answer

1)340×х-416×2=18208340×х=18208+832340×х=19040х=19040÷340х=56340×56-416×2=1820819040-832=1820818208=182082)(223440-130×х)÷35=6020223440-130×х=6020×35130×х=223440-210700130×х=12740х=12740÷130х=98(223440-130×98)÷35=6020210700÷35=60206020=60203)(31×550-х)×120=1020017050-х=10200÷12017050-х=85х=17050-85х=16965(31×550-16965)×120=10200(17050-16965)×120=1020085×120=1020010200=10200...