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-x+(-2)=4
We move all terms to the left:
-x+(-2)-(4)=0
determiningTheFunctionDomain -x-4+(-2)=0
We add all the numbers together, and all the variables
-1x-6=0
We move all terms containing x to the left, all other terms to the right
-x=6
x=6/-1
x=-6
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