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8.4+i/5=4.1
We move all terms to the left:
8.4+i/5-(4.1)=0
We add all the numbers together, and all the variables
i/5+4.3=0
We multiply all the terms by the denominator
i+(4.3)*5=0
We add all the numbers together, and all the variables
i+21.5=0
We move all terms containing i to the left, all other terms to the right
i=-21.5
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