-45=-3(2b+5)

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Solution for -45=-3(2b+5) equation: 



-45=-3(2b+5)

We move all terms to the left:

-45-(-3(2b+5))=0



We calculate terms in parentheses: -(-3(2b+5)), so:

-3(2b+5)

We multiply parentheses

-6b-15

Back to the equation:

-(-6b-15)



We get rid of parentheses

6b+15-45=0

We add all the numbers together, and all the variables

6b-30=0

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

6b=30

b=30/6

b=5

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