27.5=-9+3.5(a-8)

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Solution for 27.5=-9+3.5(a-8) equation: 



27.5=-9+3.5(a-8)

We move all terms to the left:

27.5-(-9+3.5(a-8))=0



We calculate terms in parentheses: -(-9+3.5(a-8)), so:

-9+3.5(a-8)

determiningTheFunctionDomain
3.5(a-8)-9

We multiply parentheses

3.5a-28-9

We add all the numbers together, and all the variables

3.5a-37

Back to the equation:

-(3.5a-37)



We get rid of parentheses

-3.5a+37+27.5=0

We add all the numbers together, and all the variables

-3.5a+64.5=0

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

-3.5a=-64.5

a=-64.5/-3.5

a=18+1/2.33333333333

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