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7.1=2n-5
We move all terms to the left:
7.1-(2n-5)=0
We get rid of parentheses
-2n+5+7.1=0
We add all the numbers together, and all the variables
-2n+12.1=0
We move all terms containing n to the left, all other terms to the right
-2n=-12.1
n=-12.1/-2
n=6+0.1/2
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