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-8+x/12=-1
We move all terms to the left:
-8+x/12-(-1)=0
We add all the numbers together, and all the variables
x/12-7=0
We multiply all the terms by the denominator
x-7*12=0
We add all the numbers together, and all the variables
x-84=0
We move all terms containing x to the left, all other terms to the right
x=84
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