\left\{ \begin{array} { l } { - \varepsilon a + w y = - 15 } \\ { \varepsilon a + y = 1 } \end{array} \right.
I-solve ang ε, a, w, y (complex solution)
y=-\frac{14}{w+1}\text{, }\epsilon =\frac{w+15}{a\left(w+1\right)}\text{, }a\neq 0\text{, }w\neq -1
y=1\text{, }\epsilon \in \mathrm{C}\text{, }a=0\text{, }w=-15
I-solve ang ε, a, w, y
y=-\frac{14}{w+1}\text{, }\epsilon =\frac{w+15}{a\left(w+1\right)}\text{, }a\neq 0\text{, }w\neq -1
y=1\text{, }\epsilon \in \mathrm{R}\text{, }a=0\text{, }w=-15
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