\(\dfrac{2x+1}{9}=\dfrac{-4}{18}\Rightarrow18\left(2x+1\right)=-4.9\)
\(\Rightarrow36x+18=-36\Rightarrow36x=-36-18\)
\(\Rightarrow36x=-54\Rightarrow x=-54\div36=\dfrac{-3}{2}\)
Vậy \(x=\dfrac{-3}{2}\)
\(\dfrac{2x+1}{9}=\dfrac{-4}{18}\\ =>x=\dfrac{\left(\dfrac{-4.9}{18}-1\right)}{2}=\dfrac{-3}{2}=-1,5\)
Vì \(\dfrac{2x+1}{9}=\dfrac{-4}{18}\)
\(\Rightarrow\left(2x+1\right).18=-4.9\)
\(\left(2x+1\right).18=-36\)
\(2x+1=-36:18\)
\(2x+1=-2\)
\(2x=-2-1\)
\(2x=-3\)
\(\Rightarrow x=-3:2=\dfrac{-3}{2}\)
Vậy \(x=\dfrac{-3}{2}\)
