55=3(15+b)

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Solution for 55=3(15+b) equation: 



55=3(15+b)

We move all terms to the left:

55-(3(15+b))=0

We add all the numbers together, and all the variables

-(3(b+15))+55=0



We calculate terms in parentheses: -(3(b+15)), so:

3(b+15)

We multiply parentheses

3b+45

Back to the equation:

-(3b+45)



We get rid of parentheses

-3b-45+55=0

We add all the numbers together, and all the variables

-3b+10=0

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

-3b=-10

b=-10/-3

b=3+1/3

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