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86=-x+212
We move all terms to the left:
86-(-x+212)=0
We add all the numbers together, and all the variables
-(-1x+212)+86=0
We get rid of parentheses
1x-212+86=0
We add all the numbers together, and all the variables
x-126=0
We move all terms containing x to the left, all other terms to the right
x=126
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