-9-2b=-31

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Solution for -9-2b=-31 equation: 


b in (-oo:+oo)

-(2*b)-9 = -31 // + 31

31-(2*b)-9 = 0

31-2*b-9 = 0

22-2*b = 0 // - 22

-2*b = -22 // : -2

b = -22/(-2)

b = 11

b = 11

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