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-12=8-4-3x
We move all terms to the left:
-12-(8-4-3x)=0
We add all the numbers together, and all the variables
-(-3x+4)-12=0
We get rid of parentheses
3x-4-12=0
We add all the numbers together, and all the variables
3x-16=0
We move all terms containing x to the left, all other terms to the right
3x=16
x=16/3
x=5+1/3
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