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Ответ

Ответ дан
bananass92

3 (6х+7)+2 (5х-8)=54

18х+21+10х-16=54

28х+5=54

28х+5=54

28х=49

х=49/28

х=7/4

1×3/4

Одна целая,три четвёртых

Ответ

Ответ дан
kuronika53

Вроде такой ответ....

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