-30-3b=-3(2-b)

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Solution for -30-3b=-3(2-b) equation: 



-30-3b=-3(2-b)

We move all terms to the left:

-30-3b-(-3(2-b))=0

We add all the numbers together, and all the variables

-3b-(-3(-1b+2))-30=0



We calculate terms in parentheses: -(-3(-1b+2)), so:

-3(-1b+2)

We multiply parentheses

3b-6

Back to the equation:

-(3b-6)



We get rid of parentheses

-3b-3b+6-30=0

We add all the numbers together, and all the variables

-6b-24=0

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

-6b=24

b=24/-6

b=-4

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