Question

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Answer 1

0.2-2(x+1)=0.4x
0.2-2x-2=0.4x
-1.8-2x=0.4x
-2x-0.4x=1.8
-2.4x=1.8
x=-0.75

Answer 2

$0,2-2x-2=0,4x \2x+0,4x=0,2-2 \2,4x=-1,8 \x=- frac{1,8}{2,4} =- frac{18}{24}= - frac{6}{8}=- frac{3}{4}=-0,75$
Ответ: x=-0,75