6=-2(b-9)

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Solution for 6=-2(b-9) equation: 



6=-2(b-9)

We move all terms to the left:

6-(-2(b-9))=0



We calculate terms in parentheses: -(-2(b-9)), so:

-2(b-9)

We multiply parentheses

-2b+18

Back to the equation:

-(-2b+18)



We get rid of parentheses

2b-18+6=0

We add all the numbers together, and all the variables

2b-12=0

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

2b=12

b=12/2

b=6

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