Stelsels combinatie (reeks 1)

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Combinatie

1. \(\left\{\begin{matrix}-8y=-94-6x\\-9x-7y=-11\end{matrix}\right.\)
2. \(\left\{\begin{matrix}7x-9y=118\\3x=-9y-78\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-9y=-51+3x\\4x+7y=48\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-7y-4x=-99\\-3x-3y=-54\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-10x-7y=2\\-5x+9y=-74\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-7y-8x=-12\\-6x+10y=52\end{matrix}\right.\)
7. \(\left\{\begin{matrix}9x-5y=-40\\7x-9y=-26\end{matrix}\right.\)
8. \(\left\{\begin{matrix}8x-6y=38\\6x+6y=102\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-10y=-30+6x\\-7x+2y=88\end{matrix}\right.\)
10. \(\left\{\begin{matrix}-4x-10y=50\\-5x-5y=55\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-6x+5y=-23\\10x-4y=34\end{matrix}\right.\)
12. \(\left\{\begin{matrix}10x+2y=84\\-8y-4x=24\end{matrix}\right.\)

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Combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}-8y=-94-6x\\-9x-7y=-11\end{matrix}\right.\qquad V=\{(-5,8)\}\)
2. \(\left\{\begin{matrix}7x-9y=118\\3x=-9y-78\end{matrix}\right.\qquad V=\{(4,-10)\}\)
3. \(\left\{\begin{matrix}-9y=-51+3x\\4x+7y=48\end{matrix}\right.\qquad V=\{(5,4)\}\)
4. \(\left\{\begin{matrix}-7y-4x=-99\\-3x-3y=-54\end{matrix}\right.\qquad V=\{(9,9)\}\)
5. \(\left\{\begin{matrix}-10x-7y=2\\-5x+9y=-74\end{matrix}\right.\qquad V=\{(4,-6)\}\)
6. \(\left\{\begin{matrix}-7y-8x=-12\\-6x+10y=52\end{matrix}\right.\qquad V=\{(-2,4)\}\)
7. \(\left\{\begin{matrix}9x-5y=-40\\7x-9y=-26\end{matrix}\right.\qquad V=\{(-5,-1)\}\)
8. \(\left\{\begin{matrix}8x-6y=38\\6x+6y=102\end{matrix}\right.\qquad V=\{(10,7)\}\)
9. \(\left\{\begin{matrix}-10y=-30+6x\\-7x+2y=88\end{matrix}\right.\qquad V=\{(-10,9)\}\)
10. \(\left\{\begin{matrix}-4x-10y=50\\-5x-5y=55\end{matrix}\right.\qquad V=\{(-10,-1)\}\)
11. \(\left\{\begin{matrix}-6x+5y=-23\\10x-4y=34\end{matrix}\right.\qquad V=\{(3,-1)\}\)
12. \(\left\{\begin{matrix}10x+2y=84\\-8y-4x=24\end{matrix}\right.\qquad V=\{(10,-8)\}\)