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-4=2x-x-3+8x
We move all terms to the left:
-4-(2x-x-3+8x)=0
We add all the numbers together, and all the variables
-(9x-3)-4=0
We get rid of parentheses
-9x+3-4=0
We add all the numbers together, and all the variables
-9x-1=0
We move all terms containing x to the left, all other terms to the right
-9x=1
x=1/-9
x=-1/9
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