-7=-(20)/(v+2)

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Solution for -7=-(20)/(v+2) equation: 


D( v )

v+2 = 0

v+2 = 0

v+2 = 0

v+2 = 0 // - 2

v = -2

v in (-oo:-2) U (-2:+oo)

-7 = -(20/(v+2)) // + 20/(v+2)

20/(v+2)-7 = 0

20/(v+2)+(-7*(v+2))/(v+2) = 0

20-7*(v+2) = 0

6-7*v = 0

(6-7*v)/(v+2) = 0

(6-7*v)/(v+2) = 0 // * v+2

6-7*v = 0

6-7*v = 0 // - 6

-7*v = -6 // : -7

v = -6/(-7)

v = 6/7

v = 6/7

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