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-(2x-4)-7x=22
We move all terms to the left:
-(2x-4)-7x-(22)=0
We add all the numbers together, and all the variables
-7x-(2x-4)-22=0
We get rid of parentheses
-7x-2x+4-22=0
We add all the numbers together, and all the variables
-9x-18=0
We move all terms containing x to the left, all other terms to the right
-9x=18
x=18/-9
x=-2
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