28=7/2u

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Solution for 28=7/2u equation: 


u in (-oo:+oo)

28 = (7/2)*u // - (7/2)*u

28-((7/2)*u) = 0

(-7/2)*u+28 = 0

28-7/2*u = 0 // - 28

-7/2*u = -28 // : -7/2

u = -28/(-7/2)

u = 8

u = 8

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