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Substitutie of combinatie

1. \(\left\{\begin{matrix}-2x-4y=\frac{-26}{133}\\x+y=\frac{-22}{133}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}3y=\frac{7}{4}+x\\-6x-2y=\frac{11}{2}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-5x+6y=\frac{395}{76}\\-x-6y=\frac{-37}{380}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-5y=\frac{53}{18}-x\\5x+4y=\frac{323}{18}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}4x-2y=\frac{-92}{13}\\5x=-y+\frac{-45}{13}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-6x+y=\frac{-268}{3}\\-3x+2y=\frac{-104}{3}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}4x-5y=\frac{-1151}{48}\\x-y=\frac{-275}{48}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}-3y=\frac{319}{70}-2x\\x-y=\frac{64}{35}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-x+2y=\frac{145}{34}\\-2x-6y=\frac{-305}{34}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}6x+4y=\frac{17}{10}\\-x=-2y+\frac{41}{20}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}4x+y=\frac{-29}{13}\\4x=-5y+\frac{-81}{13}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}-2x-5y=\frac{-7}{2}\\-x=-y+\frac{-7}{10}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}-2x-4y=\frac{-26}{133}\\x+y=\frac{-22}{133}\end{matrix}\right.\qquad V=\{(\frac{-3}{7},\frac{5}{19})\}\)
2. \(\left\{\begin{matrix}3y=\frac{7}{4}+x\\-6x-2y=\frac{11}{2}\end{matrix}\right.\qquad V=\{(-1,\frac{1}{4})\}\)
3. \(\left\{\begin{matrix}-5x+6y=\frac{395}{76}\\-x-6y=\frac{-37}{380}\end{matrix}\right.\qquad V=\{(\frac{-17}{20},\frac{3}{19})\}\)
4. \(\left\{\begin{matrix}-5y=\frac{53}{18}-x\\5x+4y=\frac{323}{18}\end{matrix}\right.\qquad V=\{(\frac{7}{2},\frac{1}{9})\}\)
5. \(\left\{\begin{matrix}4x-2y=\frac{-92}{13}\\5x=-y+\frac{-45}{13}\end{matrix}\right.\qquad V=\{(-1,\frac{20}{13})\}\)
6. \(\left\{\begin{matrix}-6x+y=\frac{-268}{3}\\-3x+2y=\frac{-104}{3}\end{matrix}\right.\qquad V=\{(16,\frac{20}{3})\}\)
7. \(\left\{\begin{matrix}4x-5y=\frac{-1151}{48}\\x-y=\frac{-275}{48}\end{matrix}\right.\qquad V=\{(\frac{-14}{3},\frac{17}{16})\}\)
8. \(\left\{\begin{matrix}-3y=\frac{319}{70}-2x\\x-y=\frac{64}{35}\end{matrix}\right.\qquad V=\{(\frac{13}{14},\frac{-9}{10})\}\)
9. \(\left\{\begin{matrix}-x+2y=\frac{145}{34}\\-2x-6y=\frac{-305}{34}\end{matrix}\right.\qquad V=\{(\frac{-13}{17},\frac{7}{4})\}\)
10. \(\left\{\begin{matrix}6x+4y=\frac{17}{10}\\-x=-2y+\frac{41}{20}\end{matrix}\right.\qquad V=\{(\frac{-3}{10},\frac{7}{8})\}\)
11. \(\left\{\begin{matrix}4x+y=\frac{-29}{13}\\4x=-5y+\frac{-81}{13}\end{matrix}\right.\qquad V=\{(\frac{-4}{13},-1)\}\)
12. \(\left\{\begin{matrix}-2x-5y=\frac{-7}{2}\\-x=-y+\frac{-7}{10}\end{matrix}\right.\qquad V=\{(1,\frac{3}{10})\}\)