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Автор - damira120104

(27,4 -0,2x): 0,08 = 1,6

(21,3 + 0,3 x) * 0.05 = 2,4

Ответ

Автор - Clever9
(27,4 -0,2x) =0.08*1.6
(27,4 -0,2x)=0.128
-0.2х=27.4-0.128
-0.2х=27.272
Х=-136.36
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