-2.12=u/2+3

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Solution for -2.12=u/2+3 equation: 


u in (-oo:+oo)

-2.12 = u/2+3 // - u/2+3

-(u/2)-3-2.12 = 0

-1/2*u-5.12 = 0 // + 5.12

-1/2*u = 5.12 // : -1/2

u = 5.12/(-1/2)

u = -10.24

u = -10.24

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