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8.1x-2.2=38.2
We move all terms to the left:
8.1x-2.2-(38.2)=0
We add all the numbers together, and all the variables
8.1x-40.4=0
We move all terms containing x to the left, all other terms to the right
8.1x=40.4
x=40.4/8.1
x=4+1/1.0125
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