3b+9=-3b+9 - solution

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Solution for 3b+9=-3b+9 equation:

b in (-oo:+oo)

3*b+9 = 9-3*b // - 9-3*b

3*b-(-3*b)-9+9 = 0

3*b+3*b-9+9 = 0

6*b = 0 // : 6

b = 0

b = 0

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