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x-0.12x=336
We move all terms to the left:
x-0.12x-(336)=0
We add all the numbers together, and all the variables
0.88x-336=0
We move all terms containing x to the left, all other terms to the right
0.88x=336
x=336/0.88
x=381+0.71999999999997/0.88
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