B+3(7b-5)=-81

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Solution for B+3(7b-5)=-81 equation: 



+3(7B-5)=-81

We move all terms to the left:

+3(7B-5)-(-81)=0

We add all the numbers together, and all the variables

3(7B-5)+81=0

We multiply parentheses

21B-15+81=0

We add all the numbers together, and all the variables

21B+66=0

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

21B=-66

B=-66/21

B=-3+1/7

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