-2d-1=-3

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Solution for -2d-1=-3 equation: 


d in (-oo:+oo)

-2*d-1 = -3 // + 3

3-2*d-1 = 0

2-2*d = 0 // - 2

-2*d = -2 // : -2

d = -2/(-2)

d = 1

d = 1

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