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x/5.21=8.1
We move all terms to the left:
x/5.21-(8.1)=0
We add all the numbers together, and all the variables
x/5.21-8.1=0
We multiply all the terms by the denominator
x-(8.1)*5.21=0
We add all the numbers together, and all the variables
x-42.201=0
We move all terms containing x to the left, all other terms to the right
x=42.201
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