-4=-7/u+6

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Solution for -4=-7/u+6 equation: 


D( u )

u = 0

u = 0

u = 0

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

-4 = 6-7/u // - 6-7/u

-(-7/u)-6-4 = 0

7*u^-1-6-4 = 0

7*u^-1 = 10 // : 7

u^-1 = 10/7

-1 < 0

1/(u^1) = 10/7 // * u^1

1 = 10/7*u^1 // : 10/7

7/10 = u^1

u = 7/10

u = 7/10

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