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+60=0

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

6b=-60

b=-60/6

b=-10

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