42=7/3u

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Solution for 42=7/3u equation: 


u in (-oo:+oo)

42 = (7/3)*u // - (7/3)*u

42-((7/3)*u) = 0

(-7/3)*u+42 = 0

42-7/3*u = 0 // - 42

-7/3*u = -42 // : -7/3

u = -42/(-7/3)

u = 18

u = 18

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