2b-3+b=-12 - solution

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Solution for 2b-3+b=-12 equation:

b in (-oo:+oo)

2*b+b-3 = -12 // + 12

2*b+b-3+12 = 0

3*b+9 = 0 // - 9

3*b = -9 // : 3

b = -9/3

b = -3

b = -3

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