Автор - zik79

х=(х+270)*0,10
x = (x + 270) times  0.10

Ответ

Автор - ivanorehov1804

0,1х-х+27=0

-0,9х=-27

х=30

Ответ

Автор - setaz213

x = (x + 270) times 0.1 \ (x + 270) times 0.1 - x = 0 \ 0.1x + 27 - x = 0 \  - 0.9x =  - 27 \ x = 30

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