(3x-9)/(x-4)0

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Solution for (3x-9)/(x-4)0 equation: 


D( x )

x-4 = 0

x-4 = 0

x-4 = 0

x-4 = 0 // + 4

x = 4

x in (-oo:4) U (4:+oo)

(3*x-9)/(x-4) > 0

( 3*x-9 )

3*x-9 > 0 // + 9

3*x > 9 // : 3

x > 9/3

x > 3

( x-4 )

x-4 > 0 // + 4

x > 4

	(-oo:3)	(3:4)	(4:+oo)
3*x-9	-	+	+
x-4	-	-	+


x in (-oo:3) U (4:+oo)

(-oo:3) U (4:+oo)

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