18=3-(4+x)

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Solution for 18=3-(4+x) equation: 



18=3-(4+x)

We move all terms to the left:

18-(3-(4+x))=0

We add all the numbers together, and all the variables

-(3-(x+4))+18=0



We calculate terms in parentheses: -(3-(x+4)), so:

3-(x+4)

determiningTheFunctionDomain
-(x+4)+3

We get rid of parentheses

-x-4+3

We add all the numbers together, and all the variables

-1x-1

Back to the equation:

-(-1x-1)



We get rid of parentheses

1x+1+18=0

We add all the numbers together, and all the variables

x+19=0

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

x=-19

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