3(b-1)=-9+4b

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Solution for 3(b-1)=-9+4b equation: 



3(b-1)=-9+4b

We move all terms to the left:

3(b-1)-(-9+4b)=0

We add all the numbers together, and all the variables

3(b-1)-(4b-9)=0

We multiply parentheses

3b-(4b-9)-3=0

We get rid of parentheses

3b-4b+9-3=0

We add all the numbers together, and all the variables

-1b+6=0

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

-b=-6

b=-6/-1

b=+6

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