Algebra-Lineares Gleichungssystem-Determinantenverfahren (2)
$\begin{array}{l}
D_h=\begin{array}{|cc|}a1\ & b1 \\ a2&b2 \\ \end{array}=
a1 \cdot b2 -b1 \cdot a2 \\
D_x=\begin{array}{|cc|}c1\ & b1 \\ c2&b2 \\ \end{array}=
c1 \cdot b2 -b1 \cdot c2 \\
D_y=\begin{array}{|cc|}a1\ & c1 \\ a2&c2 \\ \end{array}=
a1 \cdot c2 -c1 \cdot a2\\
x=\frac{D_x}{D_h} \\
y=\frac{D_y}{D_h}
\end{array}$