7/u-4=3

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Solution for 7/u-4=3 equation: 


D( u )

u = 0

u = 0

u = 0

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

7/u-4 = 3 // - 3

7/u-4-3 = 0

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

u^-1 = 1

-1 < 0

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

1 = 1*u^1 // : 1

1 = u^1

u = 1

u = 1

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