7=4/(v+2)

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Solution for 7=4/(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 = 4/(v+2) // - 4/(v+2)

7-(4/(v+2)) = 0

7-4*(v+2)^-1 = 0

7-4/(v+2) = 0

(7*(v+2))/(v+2)-4/(v+2) = 0

7*(v+2)-4 = 0

7*v+10 = 0

(7*v+10)/(v+2) = 0

(7*v+10)/(v+2) = 0 // * v+2

7*v+10 = 0

7*v+10 = 0 // - 10

7*v = -10 // : 7

v = -10/7

v = -10/7

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