(-3y-7)/(9y-4)

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Solution for (-3y-7)/(9y-4) equation: 


D( y )

9*y-4 = 0

9*y-4 = 0

9*y-4 = 0

9*y-4 = 0 // + 4

9*y = 4 // : 9

y = 4/9

y in (-oo:4/9) U (4/9:+oo)

(-3*y-7)/(9*y-4) = 0

-3*y-7 = 0 // + 7

-3*y = 7 // : -3

y = 7/(-3)

y = -7/3

y = -7/3

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