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4=2-x-2
We move all terms to the left:
4-(2-x-2)=0
We add all the numbers together, and all the variables
-(-1x)+4=0
We get rid of parentheses
1x+4=0
We add all the numbers together, and all the variables
x+4=0
We move all terms containing x to the left, all other terms to the right
x=-4
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