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-12=(x+4)
We move all terms to the left:
-12-((x+4))=0
We calculate terms in parentheses: -((x+4)), so:We get rid of parentheses
(x+4)
We get rid of parentheses
x+4
Back to the equation:
-(x+4)
-x-4-12=0
We add all the numbers together, and all the variables
-1x-16=0
We move all terms containing x to the left, all other terms to the right
-x=16
x=16/-1
x=-16
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