-3/(v-4)=-7

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Solution for -3/(v-4)=-7 equation: 


D( v )

v-4 = 0

v-4 = 0

v-4 = 0

v-4 = 0 // + 4

v = 4

v in (-oo:4) U (4:+oo)

-3/(v-4) = -7 // + 7

7-3/(v-4) = 0

(7*(v-4))/(v-4)-3/(v-4) = 0

7*(v-4)-3 = 0

7*v-31 = 0

(7*v-31)/(v-4) = 0

(7*v-31)/(v-4) = 0 // * v-4

7*v-31 = 0

7*v-31 = 0 // + 31

7*v = 31 // : 7

v = 31/7

v = 31/7

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