(89+23)+9=89+(9+a)

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Solution for (89+23)+9=89+(9+a) equation: 



(89+23)+9=89+(9+a)

We move all terms to the left:

(89+23)+9-(89+(9+a))=0

We add all the numbers together, and all the variables

-(89+(a+9))+9+112=0

We add all the numbers together, and all the variables

-(89+(a+9))+121=0



We calculate terms in parentheses: -(89+(a+9)), so:

89+(a+9)

determiningTheFunctionDomain
(a+9)+89

We get rid of parentheses

a+9+89

We add all the numbers together, and all the variables

a+98

Back to the equation:

-(a+98)



We get rid of parentheses

-a-98+121=0

We add all the numbers together, and all the variables

-1a+23=0

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

-a=-23

a=-23/-1

a=+23

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