-3/u+2=-7

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Solution for -3/u+2=-7 equation: 


D( u )

u = 0

u = 0

u = 0

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

2-3/u = -7 // + 7

2-3/u+7 = 0

-3*u^-1 = -9 // : -3

u^-1 = 3

-1 < 0

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

1 = 3*u^1 // : 3

1/3 = u^1

u = 1/3

u = 1/3

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