5/u-8=7

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Solution for 5/u-8=7 equation: 


D( u )

u = 0

u = 0

u = 0

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

5/u-8 = 7 // - 7

5/u-8-7 = 0

5*u^-1 = 15 // : 5

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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