-7/u=-13

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Solution for -7/u=-13 equation: 


D( u )

u = 0

u = 0

u = 0

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

-7/u = -13 // + 13

13-7/u = 0

-7*u^-1 = -13 // : -7

u^-1 = 13/7

-1 < 0

1/(u^1) = 13/7 // * u^1

1 = 13/7*u^1 // : 13/7

7/13 = u^1

u = 7/13

u = 7/13

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