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4.5=n+7.1
We move all terms to the left:
4.5-(n+7.1)=0
We get rid of parentheses
-n-7.1+4.5=0
We add all the numbers together, and all the variables
-1n-2.6=0
We move all terms containing n to the left, all other terms to the right
-n=2.6
n=2.6/-1
n=-2+0.6/1
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