Combinatie
\(\left\{\begin{matrix}2x-6y=-58\\9x+10y=-2\end{matrix}\right.\)
\(\left\{\begin{matrix}2x-6y=-58\\9x+10y=-2\end{matrix}\right.\\ \Leftrightarrow \left\{\begin{array}{c|c|c}2x-6y=-58& \color{red}{9.} & \color{blue}{5.} \\9x+10y=-2& \color{red}{-2.} & \color{blue}{3.} \end{array}\right.\\ \Leftrightarrow \left\{\begin{matrix} \color{red}{\underline{18x-18x}-54y-20y=-522+4} \\ \color{blue}{10x+27x\underline{-30y+30y}=-290-6} \end{matrix}\right.\\ \Leftrightarrow \left\{\begin{matrix}-74y=-518 \\37x=-296\end{matrix}\right.\\ \Leftrightarrow \left\{\begin{matrix}y=\frac{-518}{-74}=7 \\x=\frac{-296}{37}=-8\end{matrix}\right.\\ \qquad V=\{(-8,7)\}\)
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