1/2b=-1

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Solution for 1/2b=-1 equation: 


b in (-oo:+oo)

(1/2)*b = -1 // + 1

(1/2)*b+1 = 0

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

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

b = -1/1/2

b = -2

b = -2

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