Question

x-2/5- -6/10

Answer 1

\(\Leftrightarrow x-\dfrac{2}{5}=-\dfrac{6}{10}\)

\(\Leftrightarrow x=-\dfrac{6}{10}+\dfrac{2}{5}\)

\(\Leftrightarrow x=-\dfrac{1}{5}\)

Vậy \(x=-\dfrac{1}{5}\)

Answer 2

Ta có: \(x-\dfrac{2}{5}=-\dfrac{6}{10}\)

\(\Leftrightarrow x=\dfrac{-3}{5}+\dfrac{2}{5}=\dfrac{-1}{5}\)