15b+9=-3(-5b-3)

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Solution for 15b+9=-3(-5b-3) equation: 



15b+9=-3(-5b-3)

We move all terms to the left:

15b+9-(-3(-5b-3))=0



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

-3(-5b-3)

We multiply parentheses

15b+9

Back to the equation:

-(15b+9)



We get rid of parentheses

15b-15b-9+9=0

We add all the numbers together, and all the variables

=0

b=0/1

b=0

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