Stelsels met breuken

Substitutie of combinatie

\(\left\{\begin{matrix}4y=\frac{263}{126}+3x\\-4x-y=\frac{661}{126}\end{matrix}\right.\)

\(\left\{\begin{matrix}4y=\frac{263}{126}+3x\\-4x-y=\frac{661}{126}\end{matrix}\right.\qquad V=\{(\frac{-17}{14},\frac{-7}{18})\}\)