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Substitutie of combinatie

1. \(\left\{\begin{matrix}-2y=\frac{-399}{85}-5x\\-5x+y=\frac{849}{170}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}-2y=\frac{-315}{34}+5x\\-x+2y=\frac{9}{34}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-4x-2y=\frac{-9}{5}\\-2x=-y+\frac{11}{10}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}3x+4y=-35\\-2x=-y+-6\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-x-4y=\frac{667}{266}\\-2x=6y+\frac{429}{133}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-6x-2y=\frac{218}{17}\\4x=-y+\frac{-143}{17}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}-y=\frac{-91}{48}+3x\\4x-3y=\frac{949}{144}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}-x-6y=\frac{-77}{6}\\2x+5y=\frac{161}{12}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-5y=\frac{-370}{7}-6x\\x-y=\frac{-60}{7}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}-5y=\frac{-37}{6}+5x\\x-y=\frac{11}{10}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-4x-y=\frac{-106}{13}\\-4x+4y=\frac{544}{13}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}-3x+4y=\frac{-1495}{323}\\-x=y+\frac{344}{323}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}-2y=\frac{-399}{85}-5x\\-5x+y=\frac{849}{170}\end{matrix}\right.\qquad V=\{(\frac{-18}{17},\frac{-3}{10})\}\)
2. \(\left\{\begin{matrix}-2y=\frac{-315}{34}+5x\\-x+2y=\frac{9}{34}\end{matrix}\right.\qquad V=\{(\frac{3}{2},\frac{15}{17})\}\)
3. \(\left\{\begin{matrix}-4x-2y=\frac{-9}{5}\\-2x=-y+\frac{11}{10}\end{matrix}\right.\qquad V=\{(\frac{-1}{20},1)\}\)
4. \(\left\{\begin{matrix}3x+4y=-35\\-2x=-y+-6\end{matrix}\right.\qquad V=\{(-1,-8)\}\)
5. \(\left\{\begin{matrix}-x-4y=\frac{667}{266}\\-2x=6y+\frac{429}{133}\end{matrix}\right.\qquad V=\{(\frac{15}{14},\frac{-17}{19})\}\)
6. \(\left\{\begin{matrix}-6x-2y=\frac{218}{17}\\4x=-y+\frac{-143}{17}\end{matrix}\right.\qquad V=\{(-2,\frac{-7}{17})\}\)
7. \(\left\{\begin{matrix}-y=\frac{-91}{48}+3x\\4x-3y=\frac{949}{144}\end{matrix}\right.\qquad V=\{(\frac{17}{18},\frac{-15}{16})\}\)
8. \(\left\{\begin{matrix}-x-6y=\frac{-77}{6}\\2x+5y=\frac{161}{12}\end{matrix}\right.\qquad V=\{(\frac{7}{3},\frac{7}{4})\}\)
9. \(\left\{\begin{matrix}-5y=\frac{-370}{7}-6x\\x-y=\frac{-60}{7}\end{matrix}\right.\qquad V=\{(-10,\frac{-10}{7})\}\)
10. \(\left\{\begin{matrix}-5y=\frac{-37}{6}+5x\\x-y=\frac{11}{10}\end{matrix}\right.\qquad V=\{(\frac{7}{6},\frac{1}{15})\}\)
11. \(\left\{\begin{matrix}-4x-y=\frac{-106}{13}\\-4x+4y=\frac{544}{13}\end{matrix}\right.\qquad V=\{(\frac{-6}{13},10)\}\)
12. \(\left\{\begin{matrix}-3x+4y=\frac{-1495}{323}\\-x=y+\frac{344}{323}\end{matrix}\right.\qquad V=\{(\frac{1}{19},\frac{-19}{17})\}\)