90=(2b-9)+15+1.5(b+2)

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Solution for 90=(2b-9)+15+1.5(b+2) equation: 



90=(2b-9)+15+1.5(b+2)

We move all terms to the left:

90-((2b-9)+15+1.5(b+2))=0



We calculate terms in parentheses: -((2b-9)+15+1.5(b+2)), so:

(2b-9)+15+1.5(b+2)

determiningTheFunctionDomain
(2b-9)+1.5(b+2)+15

We multiply parentheses

(2b-9)+1.5b+3+15

We get rid of parentheses

2b+1.5b-9+3+15

We add all the numbers together, and all the variables

3.5b+9

Back to the equation:

-(3.5b+9)



We get rid of parentheses

-3.5b-9+90=0

We add all the numbers together, and all the variables

-3.5b+81=0

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

-3.5b=-81

b=-81/-3.5

b=23+0.5/3.5

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