12/b=-3

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Solution for 12/b=-3 equation: 



12/b=-3

We move all terms to the left:

12/b-(-3)=0



Domain of the equation: b!=0

b∈R



We add all the numbers together, and all the variables

12/b+3=0

We multiply all the terms by the denominator


3*b+12=0

We add all the numbers together, and all the variables

3b+12=0

We move all terms containing b to the left, all other terms to the right

3b=-12

b=-12/3

b=-4

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