((19y-3)/(9y))-((7y)/(9y))

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Solution for ((19y-3)/(9y))-((7y)/(9y)) equation: 


D( y )

9*y = 0

9*y = 0

9*y = 0

9*y = 0 // : 9

y = 0

y in (-oo:0) U (0:+oo)

(19*y-3)/(9*y)-((7*y)/(9*y)) = 0

(19*y-3)/(9*y)-7/9 = 0

(9*(19*y-3))/(9*9*y)+(-7*9*y)/(9*9*y) = 0

9*(19*y-3)-7*9*y = 0

108*y-27 = 0

(108*y-27)/(9*9*y) = 0

(108*y-27)/(9*9*y) = 0 // * 9*9*y

108*y-27 = 0

108*y-27 = 0 // + 27

108*y = 27 // : 108

y = 27/108

y = 1/4

y = 1/4

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