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x/21+0.03=4.09
We move all terms to the left:
x/21+0.03-(4.09)=0
We add all the numbers together, and all the variables
x/21-4.06=0
We multiply all the terms by the denominator
x-(4.06)*21=0
We add all the numbers together, and all the variables
x-85.26=0
We move all terms containing x to the left, all other terms to the right
x=85.26
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