7=(-3)/u-1

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Solution for 7=(-3)/u-1 equation: 


D( u )

u = 0

u = 0

u = 0

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

7 = -3/u-1 // + -3/u-1

1-(-3/u)+7 = 0

3*u^-1+1+7 = 0

3*u^-1 = -8 // : 3

u^-1 = -8/3

-1 < 0

1/(u^1) = -8/3 // * u^1

1 = -8/3*u^1 // : -8/3

-3/8 = u^1

u = -3/8

u = -3/8

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