Respuesta :

we have the system:

[tex]\begin{cases}4x+y=4 \\ -4x=y-4\end{cases}[/tex]

Adding both equation we find that :

[tex]y=y[/tex]

So, we have an infinity amount of solutions, we just need that:

[tex]x=\frac{-y}{4}+1[/tex]

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