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Substitutie of combinatie

1. \(\left\{\begin{matrix}4y=\frac{-13}{77}-3x\\6x+y=\frac{-334}{77}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}y=\frac{95}{8}+6x\\2x-2y=\frac{-25}{12}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-2x-6y=\frac{-22}{7}\\-6x+y=\frac{68}{21}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-4x+3y=\frac{-29}{6}\\x=5y+\frac{71}{6}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-3x-5y=\frac{172}{7}\\5x+y=\frac{-30}{7}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-x+3y=\frac{-28}{5}\\3x=6y+\frac{54}{5}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}x-2y=\frac{5}{4}\\-4x=4y+\frac{19}{4}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}-y=\frac{13}{10}+6x\\-3x-2y=\frac{16}{5}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-6x+5y=\frac{-34}{3}\\-2x-y=\frac{-122}{45}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}6x-4y=\frac{-49}{18}\\-2x+y=\frac{13}{18}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-3x+6y=\frac{75}{14}\\2x=-y+\frac{-5}{7}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}-2y=\frac{-292}{63}-6x\\x-5y=\frac{-163}{63}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}4y=\frac{-13}{77}-3x\\6x+y=\frac{-334}{77}\end{matrix}\right.\qquad V=\{(\frac{-9}{11},\frac{4}{7})\}\)
2. \(\left\{\begin{matrix}y=\frac{95}{8}+6x\\2x-2y=\frac{-25}{12}\end{matrix}\right.\qquad V=\{(\frac{-13}{6},\frac{-9}{8})\}\)
3. \(\left\{\begin{matrix}-2x-6y=\frac{-22}{7}\\-6x+y=\frac{68}{21}\end{matrix}\right.\qquad V=\{(\frac{-3}{7},\frac{2}{3})\}\)
4. \(\left\{\begin{matrix}-4x+3y=\frac{-29}{6}\\x=5y+\frac{71}{6}\end{matrix}\right.\qquad V=\{(\frac{-2}{3},\frac{-5}{2})\}\)
5. \(\left\{\begin{matrix}-3x-5y=\frac{172}{7}\\5x+y=\frac{-30}{7}\end{matrix}\right.\qquad V=\{(\frac{1}{7},-5)\}\)
6. \(\left\{\begin{matrix}-x+3y=\frac{-28}{5}\\3x=6y+\frac{54}{5}\end{matrix}\right.\qquad V=\{(\frac{-2}{5},-2)\}\)
7. \(\left\{\begin{matrix}x-2y=\frac{5}{4}\\-4x=4y+\frac{19}{4}\end{matrix}\right.\qquad V=\{(\frac{-3}{8},\frac{-13}{16})\}\)
8. \(\left\{\begin{matrix}-y=\frac{13}{10}+6x\\-3x-2y=\frac{16}{5}\end{matrix}\right.\qquad V=\{(\frac{1}{15},\frac{-17}{10})\}\)
9. \(\left\{\begin{matrix}-6x+5y=\frac{-34}{3}\\-2x-y=\frac{-122}{45}\end{matrix}\right.\qquad V=\{(\frac{14}{9},\frac{-2}{5})\}\)
10. \(\left\{\begin{matrix}6x-4y=\frac{-49}{18}\\-2x+y=\frac{13}{18}\end{matrix}\right.\qquad V=\{(\frac{-1}{12},\frac{5}{9})\}\)
11. \(\left\{\begin{matrix}-3x+6y=\frac{75}{14}\\2x=-y+\frac{-5}{7}\end{matrix}\right.\qquad V=\{(\frac{-9}{14},\frac{4}{7})\}\)
12. \(\left\{\begin{matrix}-2y=\frac{-292}{63}-6x\\x-5y=\frac{-163}{63}\end{matrix}\right.\qquad V=\{(\frac{-9}{14},\frac{7}{18})\}\)