9=9-2(2x-8)

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Solution for 9=9-2(2x-8) equation: 



9=9-2(2x-8)

We move all terms to the left:

9-(9-2(2x-8))=0



We calculate terms in parentheses: -(9-2(2x-8)), so:

9-2(2x-8)

determiningTheFunctionDomain
-2(2x-8)+9

We multiply parentheses

-4x+16+9

We add all the numbers together, and all the variables

-4x+25

Back to the equation:

-(-4x+25)



We get rid of parentheses

4x-25+9=0

We add all the numbers together, and all the variables

4x-16=0

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

4x=16

x=16/4

x=4

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