Bonjour,
[tex]\left\{ \begin{array}{ll}
5x + 2y = 16\\
3x - y = 3
\end{array}
\right.
[/tex]
[tex]\left\{\begin{array}{ll}
5x + 2y = 16\\
y = 3x - 3
\end{array}
\right. [/tex]
[tex]\left\{\begin{array}{ll}
5x + 2(3x - 3)= 16\\
y = 3x - 3
\end{array}
\right. [/tex]
[tex]\left\{\begin{array}{ll}
5x + 6x - 6 = 16\\
y = 3x - 3
\end{array}
\right. [/tex]
[tex]\left\{\begin{array}{ll}
11x = 22\\
y = 3x - 3
\end{array}
\right. [/tex]
[tex]\left\{\begin{array}{ll}
x = \frac{22}{11} \\
y = 3x - 3
\end{array}
\right. [/tex]
[tex]\left\{\begin{array}{ll}
x = 2\\
y = 3 \times 2 - 3
\end{array}
\right. [/tex]
[tex]\left\{\begin{array}{ll}
x = 2\\
y = 3
\end{array}
\right. [/tex]
