Автор - esmiralda2015

1 7/20-(х+0,75)=1/4 помогите пожалуйста ​

Ответ

Автор - disorientated

27/20 - x - 0.75 = 1/4

27/20 - x - 3/4 = 1/4

3/5 - x = 1/4

-x = 1/4 - 3/5

x = 0.35

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