2/7v-1/2=-2/5

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Solution for 2/7v-1/2=-2/5 equation: 


v in (-oo:+oo)

(2/7)*v-(1/2) = -2/5 // + -2/5

(2/7)*v-(1/2)-(-2/5) = 0

(2/7)*v-1/2+2/5 = 0

2/7*v-1/10 = 0 // + 1/10

2/7*v = 1/10 // : 2/7

v = 1/10/2/7

v = 7/20

v = 7/20

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