b/2+3=9

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Solution for b/2+3=9 equation: 


b in (-oo:+oo)

b/2+3 = 9 // - 9

b/2-9+3 = 0

1/2*b-6 = 0 // + 6

1/2*b = 6 // : 1/2

b = 6/1/2

b = 12

b = 12

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