1/y-7=4

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Solution for 1/y-7=4 equation: 


D( y )

y = 0

y = 0

y = 0

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

1/y-7 = 4 // - 4

1/y-7-4 = 0

1*y^-1 = 11 // : 1

y^-1 = 11

-1 < 0

1/(y^1) = 11 // * y^1

1 = 11*y^1 // : 11

1/11 = y^1

y = 1/11

y = 1/11

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