Question

Tìm x

\(\left(\dfrac{3x}{x}+1\right):\left(-4\right)=\dfrac{-1}{28}\)

Answer 1

Ta có: \(\left(\dfrac{3x}{x}+1\right):\left(-4\right)=\dfrac{-1}{28}\)

\(\Leftrightarrow4:\left(-4\right)=\dfrac{-1}{28}\)(Vô lý)