u/-3=-4.2

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Solution for u/-3=-4.2 equation: 


u in (-oo:+oo)

u/(-3) = -4.2 // + 4.2

u/(-3)+4.2 = 0

4.2-1/3*u = 0 // - 4.2

-1/3*u = -4.2 // : -1/3

u = -4.2/(-1/3)

u = 12.60000013

u = 12.60000013

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