(2b-9)+b+(1.5(b+2))=75

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Solution for (2b-9)+b+(1.5(b+2))=75 equation: 



(2b-9)+b+(1.5(b+2))=75

We move all terms to the left:

(2b-9)+b+(1.5(b+2))-(75)=0

We add all the numbers together, and all the variables

b+(2b-9)+(1.5(b+2))-75=0

We get rid of parentheses

b+2b+(1.5(b+2))-9-75=0



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

1.5(b+2)

We multiply parentheses

1.5b+3

Back to the equation:

+(1.5b+3)



We add all the numbers together, and all the variables

3b+(1.5b+3)-84=0

We get rid of parentheses

3b+1.5b+3-84=0

We add all the numbers together, and all the variables

4.5b-81=0

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

4.5b=81

b=81/4.5

b=18

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