B-4+1+7b=-3(-5b+5)-2(6+5b)

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Solution for B-4+1+7b=-3(-5b+5)-2(6+5b) equation: 



-4+1+7B=-3(-5B+5)-2(6+5B)

We move all terms to the left:

-4+1+7B-(-3(-5B+5)-2(6+5B))=0

We add all the numbers together, and all the variables

7B-(-3(-5B+5)-2(5B+6))-4+1=0

We add all the numbers together, and all the variables

7B-(-3(-5B+5)-2(5B+6))-3=0



We calculate terms in parentheses: -(-3(-5B+5)-2(5B+6)), so:

-3(-5B+5)-2(5B+6)

We multiply parentheses

15B-10B-15-12

We add all the numbers together, and all the variables

5B-27

Back to the equation:

-(5B-27)



We get rid of parentheses

7B-5B+27-3=0

We add all the numbers together, and all the variables

2B+24=0

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

2B=-24

B=-24/2

B=-12

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