45/y=5/1

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Solution for 45/y=5/1 equation: 


D( y )

y = 0

y = 0

y = 0

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

45/y = 5/1 // - 5/1

45/y-(5/1) = 0

45/y-5 = 0

45*y^-1 = 5 // : 45

y^-1 = 1/9

-1 < 0

1/(y^1) = 1/9 // * y^1

1 = 1/9*y^1 // : 1/9

9 = y^1

y = 9

y = 9

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