-3(b+1)=-3(3b+5)

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Solution for -3(b+1)=-3(3b+5) equation: 



-3(b+1)=-3(3b+5)

We move all terms to the left:

-3(b+1)-(-3(3b+5))=0

We multiply parentheses

-3b-(-3(3b+5))-3=0



We calculate terms in parentheses: -(-3(3b+5)), so:

-3(3b+5)

We multiply parentheses

-9b-15

Back to the equation:

-(-9b-15)



We get rid of parentheses

-3b+9b+15-3=0

We add all the numbers together, and all the variables

6b+12=0

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

6b=-12

b=-12/6

b=-2

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