Đáp án:
\(\left[ \begin{array}{l}x=\frac{17}{7}\\x=\frac{-3}{7}\end{array} \right.\)
Giải thích các bước giải:
`(|x-1|)/5=2/7`
`<=> 7|x-1|=2.5`
`<=> 7|x-1|=10`
`<=> |x-1|=10/7`
`<=>`\(\left[ \begin{array}{l}x-1=\frac{10}{7}\\x-1=\frac{-10}{7}\end{array} \right.\)
`<=>`\(\left[ \begin{array}{l}x=\frac{10}{7}+1\\x=\frac{-10}{7}+1\end{array} \right.\)
`<=>`\(\left[ \begin{array}{l}x=\frac{17}{7}\\x=\frac{-3}{7}\end{array} \right.\)
