Respuesta :

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x=-2 6. (-2)=7-4y -12=7-4y 4y=19 y=19/4


x=-1 6. (-1)=7-4y -6=7-4y 4y=13 y=13/4


x=0 6.0=7-4y 0=7-4y 4y=7 y=7/4
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