3b+6=15 - solution

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Solution for 3b+6=15 equation:

b in (-oo:+oo)

3*b+6 = 15 // - 15

3*b-15+6 = 0

3*b-9 = 0 // + 9

3*b = 9 // : 3

b = 9/3

b = 3

b = 3

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