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3.1=7n-8
We move all terms to the left:
3.1-(7n-8)=0
We get rid of parentheses
-7n+8+3.1=0
We add all the numbers together, and all the variables
-7n+11.1=0
We move all terms containing n to the left, all other terms to the right
-7n=-11.1
n=-11.1/-7
n=1+3.7272727272727/6.3636363636364
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