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3.8x=8.4
We move all terms to the left:
3.8x-(8.4)=0
We add all the numbers together, and all the variables
3.8x-8.4=0
We move all terms containing x to the left, all other terms to the right
3.8x=8.4
x=8.4/3.8
x=2+0.8/3.8
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