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Substitutie of combinatie

1. \(\left\{\begin{matrix}3y=\frac{15}{19}+5x\\6x-y=\frac{-272}{95}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}-4x+4y=1\\x-2y=\frac{7}{10}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}x-y=\frac{349}{176}\\4x=-3y+\frac{857}{176}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}4x-2y=\frac{-143}{14}\\-5x=y+\frac{155}{56}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}3y=\frac{-201}{26}-5x\\5x+y=\frac{-421}{78}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}4x+4y=\frac{-784}{57}\\3x=y+\frac{-188}{19}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}x+3y=\frac{-69}{80}\\3x=-6y+\frac{-183}{80}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}-6y=\frac{-1309}{342}-x\\5x+4y=\frac{1411}{342}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}-2x+4y=\frac{47}{6}\\2x=y+\frac{-23}{6}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}-3x-3y=\frac{43}{5}\\-6x-y=\frac{11}{5}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}-5x-3y=\frac{504}{55}\\x+3y=\frac{-444}{55}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}3y=\frac{9}{2}-3x\\-x-y=\frac{-3}{2}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}3y=\frac{15}{19}+5x\\6x-y=\frac{-272}{95}\end{matrix}\right.\qquad V=\{(\frac{-3}{5},\frac{-14}{19})\}\)
2. \(\left\{\begin{matrix}-4x+4y=1\\x-2y=\frac{7}{10}\end{matrix}\right.\qquad V=\{(\frac{-6}{5},\frac{-19}{20})\}\)
3. \(\left\{\begin{matrix}x-y=\frac{349}{176}\\4x=-3y+\frac{857}{176}\end{matrix}\right.\qquad V=\{(\frac{17}{11},\frac{-7}{16})\}\)
4. \(\left\{\begin{matrix}4x-2y=\frac{-143}{14}\\-5x=y+\frac{155}{56}\end{matrix}\right.\qquad V=\{(\frac{-9}{8},\frac{20}{7})\}\)
5. \(\left\{\begin{matrix}3y=\frac{-201}{26}-5x\\5x+y=\frac{-421}{78}\end{matrix}\right.\qquad V=\{(\frac{-11}{13},\frac{-7}{6})\}\)
6. \(\left\{\begin{matrix}4x+4y=\frac{-784}{57}\\3x=y+\frac{-188}{19}\end{matrix}\right.\qquad V=\{(\frac{-10}{3},\frac{-2}{19})\}\)
7. \(\left\{\begin{matrix}x+3y=\frac{-69}{80}\\3x=-6y+\frac{-183}{80}\end{matrix}\right.\qquad V=\{(\frac{-9}{16},\frac{-1}{10})\}\)
8. \(\left\{\begin{matrix}-6y=\frac{-1309}{342}-x\\5x+4y=\frac{1411}{342}\end{matrix}\right.\qquad V=\{(\frac{5}{18},\frac{13}{19})\}\)
9. \(\left\{\begin{matrix}-2x+4y=\frac{47}{6}\\2x=y+\frac{-23}{6}\end{matrix}\right.\qquad V=\{(\frac{-5}{4},\frac{4}{3})\}\)
10. \(\left\{\begin{matrix}-3x-3y=\frac{43}{5}\\-6x-y=\frac{11}{5}\end{matrix}\right.\qquad V=\{(\frac{2}{15},-3)\}\)
11. \(\left\{\begin{matrix}-5x-3y=\frac{504}{55}\\x+3y=\frac{-444}{55}\end{matrix}\right.\qquad V=\{(\frac{-3}{11},\frac{-13}{5})\}\)
12. \(\left\{\begin{matrix}3y=\frac{9}{2}-3x\\-x-y=\frac{-3}{2}\end{matrix}\right.\qquad V=\{(6,\frac{-9}{2})\}\)