Respuesta:
Explicación paso a paso:
[tex]\left \{ {{2x + 3y = 12} \atop {x - y = 1}} \right. \\\\despejamos- x- de- la- ecuacion-2\\ \left \{ {{2x + 3y = 12} \atop {x = 1 + y}} \right.\\\\reemplazamos- x-en-la-ecuacion-1\\2(1+y) + 3y = 12\\2+ 2y + 3y = 12\\2 + 5y = 12\\5y = 12-2\\y = \frac{10}{5}\\\\y = 2\\\\reemplazamos-y-en-la-ecuacion-2\\x = 1 + 2 \\x = 3\\\\espero-haberte-ayudado:)[/tex]
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Respuesta:
Explicación paso a paso:
[tex]\left \{ {{2x + 3y = 12} \atop {x - y = 1}} \right. \\\\despejamos- x- de- la- ecuacion-2\\ \left \{ {{2x + 3y = 12} \atop {x = 1 + y}} \right.\\\\reemplazamos- x-en-la-ecuacion-1\\2(1+y) + 3y = 12\\2+ 2y + 3y = 12\\2 + 5y = 12\\5y = 12-2\\y = \frac{10}{5}\\\\y = 2\\\\reemplazamos-y-en-la-ecuacion-2\\x = 1 + 2 \\x = 3\\\\espero-haberte-ayudado:)[/tex]