2x-9=7-(4-x)=

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Solution for 2x-9=7-(4-x)= equation: 



2x-9=7-(4-x)=

We move all terms to the left:

2x-9-(7-(4-x))=0

We add all the numbers together, and all the variables

2x-(7-(-1x+4))-9=0



We calculate terms in parentheses: -(7-(-1x+4)), so:

7-(-1x+4)

determiningTheFunctionDomain
-(-1x+4)+7

We get rid of parentheses

1x-4+7

We add all the numbers together, and all the variables

x+3

Back to the equation:

-(x+3)



We get rid of parentheses

2x-x-3-9=0

We add all the numbers together, and all the variables

x-12=0

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

x=12

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