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8.4x-8.6=8.2
We move all terms to the left:
8.4x-8.6-(8.2)=0
We add all the numbers together, and all the variables
8.4x-16.8=0
We move all terms containing x to the left, all other terms to the right
8.4x=16.8
x=16.8/8.4
x=2
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