Respuesta:
(x, y) =
[tex]( - \frac{9}{13} - \frac{60}{13} )[/tex]
[tex]S=\{(-\frac{9}{13},-\frac{60}{13})\}[/tex]
Explicación paso a paso:
[tex]\left \{ {{x-6y=27} \atop {7x-3y=9}} \right.[/tex]
Multiplica la segunda ecuación por -2
[tex]\left \{ {{x-6y=27} \atop {-14x+6y=-18}} \right.[/tex]
agregar miembro a miembro
-13x = 9
13x = -9
[tex]x=-\frac{9}{13} \\\\-\frac{9}{13} -6y=27\\\\-9 -78y=351\\\\-78y=351+9\\\\-78y=360\\\\78y=-360\\\\y=-\frac{360}{78}\\\\y=-\frac{60}{13}[/tex]
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Respuesta:
(x, y) =
[tex]( - \frac{9}{13} - \frac{60}{13} )[/tex]
Verified answer
Respuesta:
[tex]S=\{(-\frac{9}{13},-\frac{60}{13})\}[/tex]
Explicación paso a paso:
[tex]\left \{ {{x-6y=27} \atop {7x-3y=9}} \right.[/tex]
Multiplica la segunda ecuación por -2
[tex]\left \{ {{x-6y=27} \atop {-14x+6y=-18}} \right.[/tex]
agregar miembro a miembro
-13x = 9
13x = -9
[tex]x=-\frac{9}{13} \\\\-\frac{9}{13} -6y=27\\\\-9 -78y=351\\\\-78y=351+9\\\\-78y=360\\\\78y=-360\\\\y=-\frac{360}{78}\\\\y=-\frac{60}{13}[/tex]