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0.3x=x+126
We move all terms to the left:
0.3x-(x+126)=0
We get rid of parentheses
0.3x-x-126=0
We add all the numbers together, and all the variables
-0.7x-126=0
We move all terms containing x to the left, all other terms to the right
-0.7x=126
x=126/-0.7
x=-180+1.4210854715202E-14/0.7
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