(3y-9)/(2y-6)

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Solution for (3y-9)/(2y-6) equation:


D( y )

2*y-6 = 0

2*y-6 = 0

2*y-6 = 0

2*y-6 = 0 // + 6

2*y = 6 // : 2

y = 6/2

y = 3

y in (-oo:3) U (3:+oo)

(3*y-9)/(2*y-6) = 0

3*y-9 = 0 // + 9

3*y = 9 // : 3

y = 9/3

y = 3

y in { 3}

y belongs to the empty set

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