-2b-1=-19

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Solution for -2b-1=-19 equation: 


b in (-oo:+oo)

-2*b-1 = -19 // + 19

19-2*b-1 = 0

18-2*b = 0 // - 18

-2*b = -18 // : -2

b = -18/(-2)

b = 9

b = 9

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