-8b-6b=-7(b-7)-7(1+3b)

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Solution for -8b-6b=-7(b-7)-7(1+3b) equation: 



-8b-6b=-7(b-7)-7(1+3b)

We move all terms to the left:

-8b-6b-(-7(b-7)-7(1+3b))=0

We add all the numbers together, and all the variables

-8b-6b-(-7(b-7)-7(3b+1))=0

We add all the numbers together, and all the variables

-14b-(-7(b-7)-7(3b+1))=0



We calculate terms in parentheses: -(-7(b-7)-7(3b+1)), so:

-7(b-7)-7(3b+1)

We multiply parentheses

-7b-21b+49-7

We add all the numbers together, and all the variables

-28b+42

Back to the equation:

-(-28b+42)



We get rid of parentheses

-14b+28b-42=0

We add all the numbers together, and all the variables

14b-42=0

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

14b=42

b=42/14

b=3

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