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x/2.1=15.1
We move all terms to the left:
x/2.1-(15.1)=0
We add all the numbers together, and all the variables
x/2.1-15.1=0
We multiply all the terms by the denominator
x-(15.1)*2.1=0
We add all the numbers together, and all the variables
x-31.71=0
We move all terms containing x to the left, all other terms to the right
x=31.71
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