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Substitutie of combinatie

1. \(\left\{\begin{matrix}-2y=\frac{-266}{13}-5x\\6x+y=\frac{-1324}{65}\end{matrix}\right.\)
2. \(\left\{\begin{matrix}2y=\frac{-59}{70}+5x\\5x-y=\frac{209}{140}\end{matrix}\right.\)
3. \(\left\{\begin{matrix}-4y=\frac{25}{6}+2x\\-x+3y=\frac{-45}{4}\end{matrix}\right.\)
4. \(\left\{\begin{matrix}-3y=\frac{-159}{152}+6x\\x-6y=\frac{569}{76}\end{matrix}\right.\)
5. \(\left\{\begin{matrix}-2y=\frac{244}{95}-4x\\-x-4y=\frac{463}{190}\end{matrix}\right.\)
6. \(\left\{\begin{matrix}-4x+3y=\frac{-230}{7}\\-3x+y=\frac{-305}{14}\end{matrix}\right.\)
7. \(\left\{\begin{matrix}-3x+4y=\frac{-249}{76}\\-x=2y+\frac{77}{76}\end{matrix}\right.\)
8. \(\left\{\begin{matrix}6x-2y=\frac{-43}{52}\\x=-2y+\frac{-265}{52}\end{matrix}\right.\)
9. \(\left\{\begin{matrix}3y=\frac{-147}{40}-3x\\-x+3y=\frac{-131}{40}\end{matrix}\right.\)
10. \(\left\{\begin{matrix}2x+5y=\frac{-4}{3}\\3x=-y+\frac{-23}{5}\end{matrix}\right.\)
11. \(\left\{\begin{matrix}2x+2y=\frac{-2}{3}\\3x=-y+\frac{5}{3}\end{matrix}\right.\)
12. \(\left\{\begin{matrix}3y=\frac{281}{40}-x\\2x+6y=\frac{281}{20}\end{matrix}\right.\)

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Substitutie of combinatie

Verbetersleutel

1. \(\left\{\begin{matrix}-2y=\frac{-266}{13}-5x\\6x+y=\frac{-1324}{65}\end{matrix}\right.\qquad V=\{(\frac{-18}{5},\frac{16}{13})\}\)
2. \(\left\{\begin{matrix}2y=\frac{-59}{70}+5x\\5x-y=\frac{209}{140}\end{matrix}\right.\qquad V=\{(\frac{3}{7},\frac{13}{20})\}\)
3. \(\left\{\begin{matrix}-4y=\frac{25}{6}+2x\\-x+3y=\frac{-45}{4}\end{matrix}\right.\qquad V=\{(\frac{13}{4},\frac{-8}{3})\}\)
4. \(\left\{\begin{matrix}-3y=\frac{-159}{152}+6x\\x-6y=\frac{569}{76}\end{matrix}\right.\qquad V=\{(\frac{14}{19},\frac{-9}{8})\}\)
5. \(\left\{\begin{matrix}-2y=\frac{244}{95}-4x\\-x-4y=\frac{463}{190}\end{matrix}\right.\qquad V=\{(\frac{3}{10},\frac{-13}{19})\}\)
6. \(\left\{\begin{matrix}-4x+3y=\frac{-230}{7}\\-3x+y=\frac{-305}{14}\end{matrix}\right.\qquad V=\{(\frac{13}{2},\frac{-16}{7})\}\)
7. \(\left\{\begin{matrix}-3x+4y=\frac{-249}{76}\\-x=2y+\frac{77}{76}\end{matrix}\right.\qquad V=\{(\frac{1}{4},\frac{-12}{19})\}\)
8. \(\left\{\begin{matrix}6x-2y=\frac{-43}{52}\\x=-2y+\frac{-265}{52}\end{matrix}\right.\qquad V=\{(\frac{-11}{13},\frac{-17}{8})\}\)
9. \(\left\{\begin{matrix}3y=\frac{-147}{40}-3x\\-x+3y=\frac{-131}{40}\end{matrix}\right.\qquad V=\{(\frac{-1}{10},\frac{-9}{8})\}\)
10. \(\left\{\begin{matrix}2x+5y=\frac{-4}{3}\\3x=-y+\frac{-23}{5}\end{matrix}\right.\qquad V=\{(\frac{-5}{3},\frac{2}{5})\}\)
11. \(\left\{\begin{matrix}2x+2y=\frac{-2}{3}\\3x=-y+\frac{5}{3}\end{matrix}\right.\qquad V=\{(1,\frac{-4}{3})\}\)
12. \(\left\{\begin{matrix}3y=\frac{281}{40}-x\\2x+6y=\frac{281}{20}\end{matrix}\right.\qquad V=\{(\frac{13}{8},\frac{9}{5})\}\)