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-(2x+3)+8=12
We move all terms to the left:
-(2x+3)+8-(12)=0
We add all the numbers together, and all the variables
-(2x+3)-4=0
We get rid of parentheses
-2x-3-4=0
We add all the numbers together, and all the variables
-2x-7=0
We move all terms containing x to the left, all other terms to the right
-2x=7
x=7/-2
x=-3+1/2
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