Respuesta:
[tex]x=14,\:y=-2[/tex]
Explicación paso a paso:
[tex]\begin{bmatrix}x+y=12\\ 2x+y=26\end{bmatrix}[/tex]
Sustituir: [tex]x=12-y[/tex]
[tex]\begin{bmatrix}2\left(12-y\right)+y=26\end{bmatrix}[/tex]
[tex]\begin{bmatrix}24-y=26\end{bmatrix}[/tex]
[tex]y=-2[/tex]
Para: [tex]x=12-y[/tex]
Sustituir: [tex]y=-2[/tex]
[tex]x=12-\left(-2\right)[/tex]
[tex]x=14[/tex]
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Verified answer
Respuesta:
[tex]x=14,\:y=-2[/tex]
Explicación paso a paso:
[tex]\begin{bmatrix}x+y=12\\ 2x+y=26\end{bmatrix}[/tex]
Sustituir: [tex]x=12-y[/tex]
[tex]\begin{bmatrix}2\left(12-y\right)+y=26\end{bmatrix}[/tex]
[tex]\begin{bmatrix}24-y=26\end{bmatrix}[/tex]
[tex]y=-2[/tex]
Para: [tex]x=12-y[/tex]
Sustituir: [tex]y=-2[/tex]
[tex]x=12-\left(-2\right)[/tex]
[tex]x=14[/tex]
[tex]x=14,\:y=-2[/tex]