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3x-1=-8x
We move all terms to the left:
3x-1-(-8x)=0
We get rid of parentheses
3x+8x-1=0
We add all the numbers together, and all the variables
11x-1=0
We move all terms containing x to the left, all other terms to the right
11x=1
x=1/11
x=1/11
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