Задача 57680 2 7/9:(3 3/4x-11 2/3)+1 6/7=2 4/21...

601bd346b30e7907bd2f82d1

04.02.2021 13:58:21

2 7/9:(3 3/4x-11 2/3)+1 6/7=2 4/21

5f3ea7e3faf909182968ddd9

04.02.2021 14:27:51

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2 7/9:(3 3/4x–11 2/3)=2 4/21 - 1 6/7

2 7/9:(3 3/4x–11 2/3)=46/21 - 13/7

2 7/9:(3 3/4x–11 2/3)=46/21 - 39/21

2 7/9:(3 3/4x–11 2/3)=7/21

2 7/9:(3 3/4x–11 2/3)=1/3


(3 3/4x–11 2/3)=2 7/9: 1/3

(3 3/4x–11 2/3)=(25/9) * 3

(3 3/4x–11 2/3)=25/3


3 3/4x=25/3 + (11 2/3)

(15/4)х=(25/3)+(35/3)

(15/4)х=(60/3)


(15/4)x=20

x=20*(4/15)

x=16/3