3u/2=21

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Solution for 3u/2=21 equation: 


u in (-oo:+oo)

(3*u)/2 = 21 // - 21

(3*u)/2-21 = 0

3/2*u-21 = 0 // + 21

3/2*u = 21 // : 3/2

u = 21/3/2

u = 14

u = 14

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