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Substitutie of combinatie

1. \(\left\{\begin{matrix}2y=\frac{-5}{4}-x\\-5x-4y=\frac{7}{4}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}3x+6y=\frac{-93}{40}\\2x+y=\frac{-19}{20}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-4x+6y=\frac{-1336}{11}\\-3x=y+\frac{208}{11}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-6x+2y=\frac{-25}{2}\\4x=y+\frac{21}{2}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-2x+y=\frac{37}{18}\\4x+4y=\frac{-10}{9}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-4x+4y=\frac{96}{5}\\-2x=-y+\frac{42}{5}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}2x+4y=\frac{-19}{15}\\x+2y=\frac{-19}{30}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}x-4y=\frac{-166}{9}\\3x+3y=\frac{-116}{3}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-3x+2y=\frac{19}{18}\\-x=y+\frac{-47}{18}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}6x+2y=-12\\-x+6y=\frac{25}{3}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-x-5y=\frac{-45}{14}\\2x+2y=\frac{1}{7}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}-6x+5y=\frac{37}{3}\\x-2y=\frac{-11}{15}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}2y=\frac{-5}{4}-x\\-5x-4y=\frac{7}{4}\end{matrix}\right.\qquad V=\{(\frac{1}{4},\frac{-3}{4})\}\)
2. \(\left\{\begin{matrix}3x+6y=\frac{-93}{40}\\2x+y=\frac{-19}{20}\end{matrix}\right.\qquad V=\{(\frac{-3}{8},\frac{-1}{5})\}\)
3. \(\left\{\begin{matrix}-4x+6y=\frac{-1336}{11}\\-3x=y+\frac{208}{11}\end{matrix}\right.\qquad V=\{(\frac{4}{11},-20)\}\)
4. \(\left\{\begin{matrix}-6x+2y=\frac{-25}{2}\\4x=y+\frac{21}{2}\end{matrix}\right.\qquad V=\{(\frac{17}{4},\frac{13}{2})\}\)
5. \(\left\{\begin{matrix}-2x+y=\frac{37}{18}\\4x+4y=\frac{-10}{9}\end{matrix}\right.\qquad V=\{(\frac{-7}{9},\frac{1}{2})\}\)
6. \(\left\{\begin{matrix}-4x+4y=\frac{96}{5}\\-2x=-y+\frac{42}{5}\end{matrix}\right.\qquad V=\{(\frac{-18}{5},\frac{6}{5})\}\)
7. \(\left\{\begin{matrix}2x+4y=\frac{-19}{15}\\x+2y=\frac{-19}{30}\end{matrix}\right.\qquad V=\{(\frac{-1}{2},\frac{-1}{15})\}\)
8. \(\left\{\begin{matrix}x-4y=\frac{-166}{9}\\3x+3y=\frac{-116}{3}\end{matrix}\right.\qquad V=\{(-14,\frac{10}{9})\}\)
9. \(\left\{\begin{matrix}-3x+2y=\frac{19}{18}\\-x=y+\frac{-47}{18}\end{matrix}\right.\qquad V=\{(\frac{5}{6},\frac{16}{9})\}\)
10. \(\left\{\begin{matrix}6x+2y=-12\\-x+6y=\frac{25}{3}\end{matrix}\right.\qquad V=\{(\frac{-7}{3},1)\}\)
11. \(\left\{\begin{matrix}-x-5y=\frac{-45}{14}\\2x+2y=\frac{1}{7}\end{matrix}\right.\qquad V=\{(\frac{-5}{7},\frac{11}{14})\}\)
12. \(\left\{\begin{matrix}-6x+5y=\frac{37}{3}\\x-2y=\frac{-11}{15}\end{matrix}\right.\qquad V=\{(-3,\frac{-17}{15})\}\)