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Substitutie of combinatie

1. \(\left\{\begin{matrix}4y=\frac{-8}{247}-5x\\x+6y=\frac{1678}{247}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}3x+y=-26\\4x=-5y+-31\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-4x+4y=\frac{36}{5}\\-5x=y+\frac{-39}{5}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-4x-2y=\frac{-4}{7}\\-6x-y=\frac{-34}{7}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-2y=\frac{97}{18}+x\\3x+2y=\frac{-7}{2}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-5x-2y=\frac{-22}{21}\\6x=y+\frac{193}{21}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}-x+2y=\frac{83}{9}\\5x=-6y+\frac{161}{9}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}6y=0-3x\\x-2y=\frac{19}{4}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-5x+4y=\frac{-124}{45}\\-2x=y+\frac{-34}{45}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}-6x-4y=\frac{459}{44}\\x=-3y+\frac{-537}{176}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-y=\frac{52}{3}-3x\\-3x-3y=-16\end{matrix}\right.\)
12. \(\left\{\begin{matrix}-5x-5y=\frac{275}{9}\\-x-2y=\frac{103}{18}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}4y=\frac{-8}{247}-5x\\x+6y=\frac{1678}{247}\end{matrix}\right.\qquad V=\{(\frac{-20}{19},\frac{17}{13})\}\)
2. \(\left\{\begin{matrix}3x+y=-26\\4x=-5y+-31\end{matrix}\right.\qquad V=\{(-9,1)\}\)
3. \(\left\{\begin{matrix}-4x+4y=\frac{36}{5}\\-5x=y+\frac{-39}{5}\end{matrix}\right.\qquad V=\{(1,\frac{14}{5})\}\)
4. \(\left\{\begin{matrix}-4x-2y=\frac{-4}{7}\\-6x-y=\frac{-34}{7}\end{matrix}\right.\qquad V=\{(\frac{8}{7},-2)\}\)
5. \(\left\{\begin{matrix}-2y=\frac{97}{18}+x\\3x+2y=\frac{-7}{2}\end{matrix}\right.\qquad V=\{(\frac{17}{18},\frac{-19}{6})\}\)
6. \(\left\{\begin{matrix}-5x-2y=\frac{-22}{21}\\6x=y+\frac{193}{21}\end{matrix}\right.\qquad V=\{(\frac{8}{7},\frac{-7}{3})\}\)
7. \(\left\{\begin{matrix}-x+2y=\frac{83}{9}\\5x=-6y+\frac{161}{9}\end{matrix}\right.\qquad V=\{(\frac{-11}{9},4)\}\)
8. \(\left\{\begin{matrix}6y=0-3x\\x-2y=\frac{19}{4}\end{matrix}\right.\qquad V=\{(\frac{19}{8},\frac{-19}{16})\}\)
9. \(\left\{\begin{matrix}-5x+4y=\frac{-124}{45}\\-2x=y+\frac{-34}{45}\end{matrix}\right.\qquad V=\{(\frac{4}{9},\frac{-2}{15})\}\)
10. \(\left\{\begin{matrix}-6x-4y=\frac{459}{44}\\x=-3y+\frac{-537}{176}\end{matrix}\right.\qquad V=\{(\frac{-15}{11},\frac{-9}{16})\}\)
11. \(\left\{\begin{matrix}-y=\frac{52}{3}-3x\\-3x-3y=-16\end{matrix}\right.\qquad V=\{(\frac{17}{3},\frac{-1}{3})\}\)
12. \(\left\{\begin{matrix}-5x-5y=\frac{275}{9}\\-x-2y=\frac{103}{18}\end{matrix}\right.\qquad V=\{(\frac{-13}{2},\frac{7}{18})\}\)