3+b+b=9

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Solution for 3+b+b=9 equation: 


b in (-oo:+oo)

b+b+3 = 9 // - 9

b+b-9+3 = 0

2*b-6 = 0 // + 6

2*b = 6 // : 2

b = 6/2

b = 3

b = 3

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