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Y = -x + 3----------------------2
2 emn 1
-x +3 =5/2x -4
-2x² +6x = - 8x
-2x² +14x = 0 simplificando
-x² + 7x =0 sacando en factores
( -x )(x-7)
-x = 0 x-7 = 0
x =0 x =7
respuesta x =7 y 0