2/7d-1/2=-2/7

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Solution for 2/7d-1/2=-2/7 equation: 


d in (-oo:+oo)

(2/7)*d-(1/2) = -2/7 // + -2/7

(2/7)*d-(1/2)-(-2/7) = 0

(2/7)*d-1/2+2/7 = 0

2/7*d-3/14 = 0 // + 3/14

2/7*d = 3/14 // : 2/7

d = 3/14/2/7

d = 3/4

d = 3/4

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