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Substitutie of combinatie

1. \(\left\{\begin{matrix}-4x+5y=\frac{437}{63}\\4x=y+\frac{103}{63}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}-x+3y=9\\2x-2y=\frac{-62}{3}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-4x-5y=\frac{-850}{9}\\6x+y=\frac{74}{3}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-5x+4y=\frac{551}{42}\\-x=-2y+\frac{139}{42}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-2y=\frac{46}{3}-5x\\x-6y=\frac{110}{3}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-2x-4y=\frac{-28}{11}\\-5x+y=\frac{-114}{11}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}-2x+y=\frac{-458}{63}\\2x=-5y+\frac{-130}{63}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}-2y=8+6x\\-x+6y=-5\end{matrix}\right.\)
9. \(\left\{\begin{matrix}2x-6y=\frac{553}{36}\\-x=6y+\frac{493}{36}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}-2x+2y=\frac{-35}{8}\\-x=-3y+\frac{-131}{16}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-5x+y=\frac{-271}{57}\\-3x=4y+\frac{-87}{95}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}2x-4y=\frac{-4}{3}\\-5x+y=\frac{-26}{3}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}-4x+5y=\frac{437}{63}\\4x=y+\frac{103}{63}\end{matrix}\right.\qquad V=\{(\frac{17}{18},\frac{15}{7})\}\)
2. \(\left\{\begin{matrix}-x+3y=9\\2x-2y=\frac{-62}{3}\end{matrix}\right.\qquad V=\{(-11,\frac{-2}{3})\}\)
3. \(\left\{\begin{matrix}-4x-5y=\frac{-850}{9}\\6x+y=\frac{74}{3}\end{matrix}\right.\qquad V=\{(\frac{10}{9},18)\}\)
4. \(\left\{\begin{matrix}-5x+4y=\frac{551}{42}\\-x=-2y+\frac{139}{42}\end{matrix}\right.\qquad V=\{(\frac{-13}{6},\frac{4}{7})\}\)
5. \(\left\{\begin{matrix}-2y=\frac{46}{3}-5x\\x-6y=\frac{110}{3}\end{matrix}\right.\qquad V=\{(\frac{2}{3},-6)\}\)
6. \(\left\{\begin{matrix}-2x-4y=\frac{-28}{11}\\-5x+y=\frac{-114}{11}\end{matrix}\right.\qquad V=\{(2,\frac{-4}{11})\}\)
7. \(\left\{\begin{matrix}-2x+y=\frac{-458}{63}\\2x=-5y+\frac{-130}{63}\end{matrix}\right.\qquad V=\{(\frac{20}{7},\frac{-14}{9})\}\)
8. \(\left\{\begin{matrix}-2y=8+6x\\-x+6y=-5\end{matrix}\right.\qquad V=\{(-1,-1)\}\)
9. \(\left\{\begin{matrix}2x-6y=\frac{553}{36}\\-x=6y+\frac{493}{36}\end{matrix}\right.\qquad V=\{(\frac{5}{9},\frac{-19}{8})\}\)
10. \(\left\{\begin{matrix}-2x+2y=\frac{-35}{8}\\-x=-3y+\frac{-131}{16}\end{matrix}\right.\qquad V=\{(\frac{-13}{16},-3)\}\)
11. \(\left\{\begin{matrix}-5x+y=\frac{-271}{57}\\-3x=4y+\frac{-87}{95}\end{matrix}\right.\qquad V=\{(\frac{13}{15},\frac{-8}{19})\}\)
12. \(\left\{\begin{matrix}2x-4y=\frac{-4}{3}\\-5x+y=\frac{-26}{3}\end{matrix}\right.\qquad V=\{(2,\frac{4}{3})\}\)