-3(b+5)=6(2b+5)

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Solution for -3(b+5)=6(2b+5) equation: 



-3(b+5)=6(2b+5)

We move all terms to the left:

-3(b+5)-(6(2b+5))=0

We multiply parentheses

-3b-(6(2b+5))-15=0



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

6(2b+5)

We multiply parentheses

12b+30

Back to the equation:

-(12b+30)



We get rid of parentheses

-3b-12b-30-15=0

We add all the numbers together, and all the variables

-15b-45=0

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

-15b=45

b=45/-15

b=-3

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