\(\left|3x+1\right|+\left|2y-1\right|=0\)
Mà \(\left|3x+1\right|\ge0;\left|2y-1\right|\ge0\)
\(\Rightarrow\orbr{\begin{cases}3x+1=0\\2y-1=0\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}3x=-1\\2y=1\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}x=\frac{-1}{3}\\y=\frac{1}{2}\end{cases}}\)