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-2.8=0.3n
We move all terms to the left:
-2.8-(0.3n)=0
We add all the numbers together, and all the variables
-(+0.3n)-2.8=0
We get rid of parentheses
-0.3n-2.8=0
We move all terms containing n to the left, all other terms to the right
-0.3n=2.8
n=2.8/-0.3
n=-9+0.1/0.3
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