B-1=-2(5+b)

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Solution for B-1=-2(5+b) equation: 



-1=-2(5+B)

We move all terms to the left:

-1-(-2(5+B))=0

We add all the numbers together, and all the variables

-(-2(B+5))-1=0



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

-2(B+5)

We multiply parentheses

-2B-10

Back to the equation:

-(-2B-10)



We get rid of parentheses

2B+10-1=0

We add all the numbers together, and all the variables

2B+9=0

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

2B=-9

B=-9/2

B=-4+1/2

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