Автор - taya9464

( 4, 9 - x ) : 1,2 =3


3, 8 × ( x - 0, 2 ) = 2, 28​

Ответ

Автор - liza500258

(4.9 - x) div 1.2 = 3 \ 4.9 - x = 3 times 1.2 \ 4.9 - x = 3.6 \ x = 4.9 - 3.6  \ x = 1.3

3.8 times (x - 0.2) = 2.28 \ x - 0.2 = 2.28 div 3.8 \ x  - 0.2 = 0.6 \ x = 0.2 + 0.6 \ x = 0.8

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