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2.2n=9.9
We move all terms to the left:
2.2n-(9.9)=0
We add all the numbers together, and all the variables
2.2n-9.9=0
We move all terms containing n to the left, all other terms to the right
2.2n=9.9
n=9.9/2.2
n=4+1/2
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