-1-2/7v2

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Solution for -1-2/7v2 equation: 


v in (-oo:+oo)

-((2/7)*v^2)-1 = 0

(-2/7)*v^2-1 = 0

-2/7*v^2 = 1 // : -2/7

v^2 = -7/2

v belongs to the empty set

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