9n+4=-9-4(-4n+9)

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Solution for 9n+4=-9-4(-4n+9) equation: 



9n+4=-9-4(-4n+9)

We move all terms to the left:

9n+4-(-9-4(-4n+9))=0



We calculate terms in parentheses: -(-9-4(-4n+9)), so:

-9-4(-4n+9)

determiningTheFunctionDomain
-4(-4n+9)-9

We multiply parentheses

16n-36-9

We add all the numbers together, and all the variables

16n-45

Back to the equation:

-(16n-45)



We get rid of parentheses

9n-16n+45+4=0

We add all the numbers together, and all the variables

-7n+49=0

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

-7n=-49

n=-49/-7

n=+7

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