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25.7=n+12.6
We move all terms to the left:
25.7-(n+12.6)=0
We get rid of parentheses
-n-12.6+25.7=0
We add all the numbers together, and all the variables
-1n+13.1=0
We move all terms containing n to the left, all other terms to the right
-n=-13.1
n=-13.1/-1
n=13+0.1/1
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