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x+0.12x=3800
We move all terms to the left:
x+0.12x-(3800)=0
We add all the numbers together, and all the variables
1.12x-3800=0
We move all terms containing x to the left, all other terms to the right
1.12x=3800
x=3800/1.12
x=3392+0.95999999999958/1.12
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