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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1b-(15+b+1.5(b+2)+2b-9)+90=0



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

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

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

We add all the numbers together, and all the variables

3b+1.5(b+2)+6

We multiply parentheses

3b+1.5b+3+6

We add all the numbers together, and all the variables

4.5b+9

Back to the equation:

-(4.5b+9)



We get rid of parentheses

-1b-4.5b-9+90=0

We add all the numbers together, and all the variables

-5.5b+81=0

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

-5.5b=-81

b=-81/-5.5

b=14+4/5.5

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