-49=-7/9u

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Solution for -49=-7/9u equation: 


u in (-oo:+oo)

-49 = (-7/9)*u // - (-7/9)*u

-((-7/9)*u)-49 = 0

(7/9)*u-49 = 0

7/9*u-49 = 0 // + 49

7/9*u = 49 // : 7/9

u = 49/7/9

u = 63

u = 63

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