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6=-2(4+x)
We move all terms to the left:
6-(-2(4+x))=0
We add all the numbers together, and all the variables
-(-2(x+4))+6=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+6=0
We add all the numbers together, and all the variables
2x+14=0
We move all terms containing x to the left, all other terms to the right
2x=-14
x=-14/2
x=-7
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