Respuesta :
-2x+3y=7
X=-2y+3y+-3y=7+3y
-2x=-3y+7
-2x/-2=-3y+7/-2
X=3/2y+-7/2
Y=2/3x+7/3
-4x+9y=27
X=9/4y+-27/4
Y=4/9y+3
X=-2y+3y+-3y=7+3y
-2x=-3y+7
-2x/-2=-3y+7/-2
X=3/2y+-7/2
Y=2/3x+7/3
-4x+9y=27
X=9/4y+-27/4
Y=4/9y+3