Автор - Ponchako

Решите уравнения :
0,2 × (x - 7) = 0,8 ;
-2 × (3+3,5х)-(3-х) ​

Ответ

Автор - arukk

0.2x - 1.4 = 0.8 \0.2x = 0.8 + 1.4 \ x = 2.2 div 0.2 \ x = 11

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