-2d-9+d=-2

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Solution for -2d-9+d=-2 equation: 


d in (-oo:+oo)

d-2*d-9 = -2 // + 2

d-2*d-9+2 = 0

-d-7 = 0 // + 7

-d = 7 // * -1

d = -7

d = -7

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