-7=4/u-6

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


D( u )

u = 0

u = 0

u = 0

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

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

6-(4/u)-7 = 0

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

-4*u^-1 = 1 // : -4

u^-1 = -1/4

-1 < 0

1/(u^1) = -1/4 // * u^1

1 = -1/4*u^1 // : -1/4

-4 = u^1

u = -4

u = -4

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