-12=-2/5u

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Solution for -12=-2/5u equation: 


u in (-oo:+oo)

-12 = (-2/5)*u // - (-2/5)*u

-((-2/5)*u)-12 = 0

(2/5)*u-12 = 0

2/5*u-12 = 0 // + 12

2/5*u = 12 // : 2/5

u = 12/2/5

u = 30

u = 30

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