-7d-6/7=31/21

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Solution for -7d-6/7=31/21 equation: 


d in (-oo:+oo)

-7*d-(6/7) = 31/21 // - 31/21

-7*d-(6/7)-(31/21) = 0

-7*d-6/7-31/21 = 0

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

-7*d = 7/3 // : -7

d = 7/3/(-7)

d = -1/3

d = -1/3

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