Question

|2,5-x|=1,3

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Answer 1

\(\Leftrightarrow\left[{}\begin{matrix}2.5-x=1.3\\2.5-x=-1.3\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=1.2\\x=3.8\end{matrix}\right.\)

Answer 2

x= 1,2

Answer 3

\(\Rightarrow\left[{}\begin{matrix}2,5-x=1,3\\2,5-x=-1,3\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=1,2\\x=3,8\end{matrix}\right.\)

Answer 4

x = 1,2