-1/y-7=-3

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Solution for -1/y-7=-3 equation: 


D( y )

y = 0

y = 0

y = 0

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

-1/y-7 = -3 // + 3

3-1/y-7 = 0

-1*y^-1 = 4 // : -1

y^-1 = -4

-1 < 0

1/(y^1) = -4 // * y^1

1 = -4*y^1 // : -4

-1/4 = y^1

y = -1/4

y = -1/4

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