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-(21-8x)=23
We move all terms to the left:
-(21-8x)-(23)=0
We add all the numbers together, and all the variables
-(-8x+21)-23=0
We get rid of parentheses
8x-21-23=0
We add all the numbers together, and all the variables
8x-44=0
We move all terms containing x to the left, all other terms to the right
8x=44
x=44/8
x=5+1/2
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