2=1/2b

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Solution for 2=1/2b equation: 


b in (-oo:+oo)

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

2-((1/2)*b) = 0

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

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

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

b = -2/(-1/2)

b = 4

b = 4

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