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nikitakondrate1
nikitakondrate1
23.04.2022 18:53 •  Математика

35 78+4 596+678 =894 5 добавить пропушенные цифры

👇
Ответ:
AlbertDavtyan
AlbertDavtyan
23.04.2022
Вот, лови, должно быть так)
35 78+4 596+678 =894 5 добавить пропушенные цифры
4,4(7 оценок)
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Ответ:
omy00god
omy00god
23.04.2022

тагда раз там 3х,a не 3k будет такое уравнение

z=3x+2y

x = 1 + 2 + 3 + 6 + 7 - 8y=19-8y

z=x-x/7=(7x-x)/7=6x/7

(6*(19-8y)/7=3*(19-8y)+2y

(114-48y)/7=57-24y+2y

(114-48y)/7=57-22y

114-48y=7(57-22y)

114-48y=399-154y

-48y+154y=399-114

106y=285

y= 2 73/106

проверка:

6x/7=3x+2y

6x=7(3x+2y)

6x=21x+14y

6(19-8*2 73/106)=21(19-8*2 73/106)+14(2 73/106)

19-8*285/106=19-21 54/106=-2 54/106=-2 27/53

6*(-2 27/53)=-6*133/53=-798/53=-15 3/53

21*(-133/53)=-52 37/53

14*285/106=3990/106=37 68/106=37 34/53

-52 37/53+37 34/53=-15 3/53

-15 3/53=-15 3/53

4,6(30 оценок)
Ответ:
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4,6(60 оценок)
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