7/d=-2

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Solution for 7/d=-2 equation: 


D( d )

d = 0

d = 0

d = 0

d in (-oo:0) U (0:+oo)

7/d = -2 // + 2

7/d+2 = 0

7*d^-1 = -2 // : 7

d^-1 = -2/7

-1 < 0

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

1 = -2/7*d^1 // : -2/7

-7/2 = d^1

d = -7/2

d = -7/2

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