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-16=-2(x+4)
We move all terms to the left:
-16-(-2(x+4))=0
We calculate terms in parentheses: -(-2(x+4)), so:We get rid of parentheses
-2(x+4)
We multiply parentheses
-2x-8
Back to the equation:
-(-2x-8)
2x+8-16=0
We add all the numbers together, and all the variables
2x-8=0
We move all terms containing x to the left, all other terms to the right
2x=8
x=8/2
x=4
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