-4=b/2+9

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Solution for -4=b/2+9 equation: 


b in (-oo:+oo)

-4 = b/2+9 // - b/2+9

-(b/2)-9-4 = 0

-1/2*b-13 = 0 // + 13

-1/2*b = 13 // : -1/2

b = 13/(-1/2)

b = -26

b = -26

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