Hệ pt  (left{ egin{array}{l}2x - y = 4\x + y = 3end{array} ight.) tương đương với hệ pt:

A. \(\left\{ \begin{array}{l}
y = 2x - 4\\
y =  - x + 3
\end{array} \right.\)

B. \(\left\{ \begin{array}{l}
y = 2x - 4\\
y =   x + 3
\end{array} \right.\)

C. \(\left\{ \begin{array}{l}
y = -2x + 4\\
y =  - x + 3
\end{array} \right.\)

D. \(\left\{ \begin{array}{l}
y = 2x + 4\\
y =  - x + 3
\end{array} \right.\)