Question n°1
Trouvez la solution du système suivant :
$\begin{cases} 2x-y=1\\ -4x+3y=7 \end{cases}$
$\begin{cases} x=-3 \\ y=4 \end{cases}$
\(\begin{cases} x=5 \\ y=6 \end{cases}\)
$\begin{cases} x=5 \\ y=9 \end{cases}$
Question n°2
$\begin{cases} 5x-2y=4\\ 2x+3y=13 \end{cases}$
$\begin{cases} x=5\\ y=9 \end{cases}$
$\begin{cases} x=-4\\ y=-5 \end{cases}$
$\begin{cases} x=2\\ y=3 \end{cases}$
Question n°3
$\begin{cases} 2x-3y=7\\ x+5y=-3 \end{cases}$
$\begin{cases} y=-1\\ x= 2 \end{cases}$
$\begin{cases} y=7\\ x= 6 \end{cases}$
$\begin{cases} y=1\\ x=-2 \end{cases}$
Question n°4
$\begin{cases} 3x+4y=32\\ 7x+6y=58 \end{cases}$
$\begin{cases} x=-3\\ y=6 \end{cases}$
$\begin{cases} x=1\\ y=4 \end{cases}$
$\begin{cases} x=4\\ y=5 \end{cases}$
Question n°5
$\begin{cases} 4x-2y=14\\ 3x+5y=4 \end{cases}$
$\begin{cases} x=3\\ y=-1 \end{cases}$
$\begin{cases} x=-3\\ y=7 \end{cases}$
Question n°6
$\left\{ \begin{array}{rcr} 4x + 8y & = & 54 \\ 2x + 7y & = & 39 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = &{11\over2} \ \\ y & = & 4 \ \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = &11 \ \\ y & = & 4 \ \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = &22 \ \\ y & = & 4 \ \end{array} \right.$
Question n°7
$\left\{ \begin{array}{rcr} 2x + y & = & 2,1 \\ x + 3y & = & 3,05 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & 0,645 \\ y & = & - 0,81 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & 0,645 \\ y & = & 0,81 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & -0,645 \\ y & = & 0,81 \end{array} \right.$
Question n°8
$\left\{ \begin{array}{rcr} 4x + y & = & 7 \\ 2x + 3y & = & 11 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = &3\\ y & = &1 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & -1\\ y & = &3 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & 1\\ y & = &3 \end{array} \right.$
Question n°9
$\left\{ \begin{array}{rcr} 6x + 2y & = & 12 \\ -6x + 3y & = & 8 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & -{2\over3} \\ y & = & 4 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & {2\over3} \\ y & = & 4 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & = & {2\over3} \\ y & = & -4 \end{array} \right.$
Question n°10
$\left\{ \begin{array}{rcr} 2x-3y & = & 8 \\ 3x+4y & = & -5 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & =&1 \\ y & = & -2 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & =&-1 \\ y & = & -2 \end{array} \right.$
$\left\{ \begin{array}{rcr} x & =&1 \\ y & = & 2 \end{array} \right.$
Accès restreint aux membres.
Abonnez-vous pour accéder au cours complet.
